57431073 has 32 divisors (see below), whose sum is σ = 89994240. Its totient is φ = 31901760.

The previous prime is 57431029. The next prime is 57431093. The reversal of 57431073 is 37013475.

It is not a de Polignac number, because 57431073 - 2⁶ = 57431009 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57431073.

It is not an unprimeable number, because it can be changed into a prime (57431093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136858 + ... + 137276.

It is an arithmetic number, because the mean of its divisors is an integer number (2812320).

Almost surely, 2^57431073 is an apocalyptic number.

It is an amenable number.

57431073 is a deficient number, since it is larger than the sum of its proper divisors (32563167).

57431073 is a wasteful number, since it uses less digits than its factorization.

57431073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 57431073 is about 7578.3291694146. The cubic root of 57431073 is about 385.8178442884.

The spelling of 57431073 in words is "fifty-seven million, four hundred thirty-one thousand, seventy-three".