48578445 has 18 divisors (see below), whose sum is σ = 84283758. Its totient is φ = 25883568.

The previous prime is 48578429. The next prime is 48578449. The reversal of 48578445 is 54487584.

It can be written as a sum of positive squares in only one way, i.e., 38862756 + 9715689 = 6234^2 + 3117^2 .

It is not a de Polignac number, because 48578445 - 2⁴ = 48578429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 48578445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48578449) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46236 + ... + 47274.

It is an arithmetic number, because the mean of its divisors is an integer number (4682431).

Almost surely, 2^48578445 is an apocalyptic number.

48578445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

48578445 is a deficient number, since it is larger than the sum of its proper divisors (35705313).

48578445 is an equidigital number, since it uses as much as digits as its factorization.

48578445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089 (or 1047 counting only the distinct ones).

The product of its digits is 716800, while the sum is 45.

The square root of 48578445 is about 6969.8238858668. The cubic root of 48578445 is about 364.8781603719.

Multiplying 48578445 by its sum of digits (45), we get a square (2186030025 = 46755²).

48578445 divided by its sum of digits (45) gives a square (1079521 = 1039²).

The spelling of 48578445 in words is "forty-eight million, five hundred seventy-eight thousand, four hundred forty-five".