56748619 has 4 divisors (see below), whose sum is σ = 57710520. Its totient is φ = 55786720.

The previous prime is 56748617. The next prime is 56748641. The reversal of 56748619 is 91684765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91684765 = 5 ⋅18336953.

It is a cyclic number.

It is not a de Polignac number, because 56748619 - 2¹ = 56748617 is a prime.

It is a super-2 number, since 2×56748619² = 6440811516814322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56748617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480862 + ... + 480979.

It is an arithmetic number, because the mean of its divisors is an integer number (14427630).

Almost surely, 2^56748619 is an apocalyptic number.

56748619 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

56748619 is a deficient number, since it is larger than the sum of its proper divisors (961901).

56748619 is an equidigital number, since it uses as much as digits as its factorization.

56748619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961900.

The product of its digits is 362880, while the sum is 46.

The square root of 56748619 is about 7533.1679259127. The cubic root of 56748619 is about 384.2835249658.

The spelling of 56748619 in words is "fifty-six million, seven hundred forty-eight thousand, six hundred nineteen".