57526438 has 4 divisors (see below), whose sum is σ = 86289660. Its totient is φ = 28763218.

The previous prime is 57526411. The next prime is 57526451. The reversal of 57526438 is 83462575.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 57526438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14381608 + ... + 14381611.

It is an arithmetic number, because the mean of its divisors is an integer number (21572415).

Almost surely, 2^57526438 is an apocalyptic number.

57526438 is a deficient number, since it is larger than the sum of its proper divisors (28763222).

57526438 is a wasteful number, since it uses less digits than its factorization.

57526438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28763221.

The product of its digits is 201600, while the sum is 40.

The square root of 57526438 is about 7584.6185138081. The cubic root of 57526438 is about 386.0312779473.

The spelling of 57526438 in words is "fifty-seven million, five hundred twenty-six thousand, four hundred thirty-eight".