55457265 has 16 divisors (see below), whose sum is σ = 91130688. Its totient is φ = 28777536.

The previous prime is 55457249. The next prime is 55457279. The reversal of 55457265 is 56275455.

It is not a de Polignac number, because 55457265 - 2⁴ = 55457249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49407 + ... + 50516.

It is an arithmetic number, because the mean of its divisors is an integer number (5695668).

Almost surely, 2^55457265 is an apocalyptic number.

It is an amenable number.

55457265 is a deficient number, since it is larger than the sum of its proper divisors (35673423).

55457265 is a wasteful number, since it uses less digits than its factorization.

55457265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99968.

The product of its digits is 210000, while the sum is 39.

The square root of 55457265 is about 7446.9634751354. The cubic root of 55457265 is about 381.3462521467.

The spelling of 55457265 in words is "fifty-five million, four hundred fifty-seven thousand, two hundred sixty-five".