57431956 has 6 divisors (see below), whose sum is σ = 100505930. Its totient is φ = 28715976.

The previous prime is 57431953. The next prime is 57431963. The reversal of 57431956 is 65913475.

It can be written as a sum of positive squares in only one way, i.e., 47610000 + 9821956 = 6900^2 + 3134^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57431953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7178991 + ... + 7178998.

Almost surely, 2^57431956 is an apocalyptic number.

It is an amenable number.

57431956 is a deficient number, since it is larger than the sum of its proper divisors (43073974).

57431956 is a wasteful number, since it uses less digits than its factorization.

57431956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14357993 (or 14357991 counting only the distinct ones).

The product of its digits is 113400, while the sum is 40.

The square root of 57431956 is about 7578.3874274149. The cubic root of 57431956 is about 385.8198215886.

The spelling of 57431956 in words is "fifty-seven million, four hundred thirty-one thousand, nine hundred fifty-six".