57256536 has 32 divisors (see below), whose sum is σ = 145845360. Its totient is φ = 18724992.

The previous prime is 57256523. The next prime is 57256571. The reversal of 57256536 is 63565275.

57256536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57256494 and 57256503.

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, 21235 + ... + 23778.

Almost surely, 2^57256536 is an apocalyptic number.

It is an amenable number.

57256536 is an abundant number, since it is smaller than the sum of its proper divisors (88588824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57256536 is a wasteful number, since it uses less digits than its factorization.

57256536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45075 (or 45071 counting only the distinct ones).

The product of its digits is 189000, while the sum is 39.

The square root of 57256536 is about 7566.8048739214. The cubic root of 57256536 is about 385.4266053218.

The spelling of 57256536 in words is "fifty-seven million, two hundred fifty-six thousand, five hundred thirty-six".