57256436 has 12 divisors (see below), whose sum is σ = 100259040. Its totient is φ = 28611000.

The previous prime is 57256429. The next prime is 57256439. The reversal of 57256436 is 63465275.

It is a self number, because there is not a number n which added to its sum of digits gives 57256436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57256439) 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, 5825 + ... + 12183.

It is an arithmetic number, because the mean of its divisors is an integer number (8354920).

Almost surely, 2^57256436 is an apocalyptic number.

It is an amenable number.

57256436 is a deficient number, since it is larger than the sum of its proper divisors (43002604).

57256436 is a wasteful number, since it uses less digits than its factorization.

57256436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8614 (or 8612 counting only the distinct ones).

The product of its digits is 151200, while the sum is 38.

The square root of 57256436 is about 7566.7982661096. The cubic root of 57256436 is about 385.4263809359.

The spelling of 57256436 in words is "fifty-seven million, two hundred fifty-six thousand, four hundred thirty-six".