57236427 has 12 divisors (see below), whose sum is σ = 82992624. Its totient is φ = 38010960.

The previous prime is 57236419. The next prime is 57236429. The reversal of 57236427 is 72463275.

It is a happy number.

57236427 is a `hidden beast` number, since 5 + 7 + 2 + 3 + 642 + 7 = 666.

It is not a de Polignac number, because 57236427 - 2³ = 57236419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57236391 and 57236400.

It is not an unprimeable number, because it can be changed into a prime (57236429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9724 + ... + 14457.

It is an arithmetic number, because the mean of its divisors is an integer number (6916052).

Almost surely, 2^57236427 is an apocalyptic number.

57236427 is a deficient number, since it is larger than the sum of its proper divisors (25756197).

57236427 is a wasteful number, since it uses less digits than its factorization.

57236427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24450 (or 24447 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 57236427 is about 7565.4759929564. The cubic root of 57236427 is about 385.3814782983.

The spelling of 57236427 in words is "fifty-seven million, two hundred thirty-six thousand, four hundred twenty-seven".