56257045 has 8 divisors (see below), whose sum is σ = 72701496. Its totient is φ = 41543616.

The previous prime is 56257027. The next prime is 56257087. The reversal of 56257045 is 54075265.

56257045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 799236 + 55457809 = 894^2 + 7447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56257045 - 2¹¹ = 56254997 is a prime.

It is a super-2 number, since 2×56257045² = 6329710224264050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56257045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432682 + ... + 432811.

It is an arithmetic number, because the mean of its divisors is an integer number (9087687).

Almost surely, 2^56257045 is an apocalyptic number.

It is an amenable number.

56257045 is a deficient number, since it is larger than the sum of its proper divisors (16444451).

56257045 is a wasteful number, since it uses less digits than its factorization.

56257045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865511.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 56257045 is about 7500.4696519618. The cubic root of 56257045 is about 383.1707115289.

The spelling of 56257045 in words is "fifty-six million, two hundred fifty-seven thousand, forty-five".