55245451 has 16 divisors (see below), whose sum is σ = 58021920. Its totient is φ = 52565760.

The previous prime is 55245431. The next prime is 55245467. The reversal of 55245451 is 15454255.

It is a 8-Lehmer number, since φ(55245451) divides (55245451-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 55245451 - 2⁵ = 55245419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55245431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421656 + ... + 421786.

It is an arithmetic number, because the mean of its divisors is an integer number (3626370).

Almost surely, 2^55245451 is an apocalyptic number.

55245451 is a deficient number, since it is larger than the sum of its proper divisors (2776469).

55245451 is a wasteful number, since it uses less digits than its factorization.

55245451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366.

The product of its digits is 20000, while the sum is 31.

The square root of 55245451 is about 7432.7283685064. The cubic root of 55245451 is about 380.8601268948.

It can be divided in two parts, 55245 and 451, that added together give a square (55696 = 236²).

The spelling of 55245451 in words is "fifty-five million, two hundred forty-five thousand, four hundred fifty-one".