57251651 has 2 divisors, whose sum is σ = 57251652. Its totient is φ = 57251650.

The previous prime is 57251647. The next prime is 57251683. The reversal of 57251651 is 15615275.

It is an a-pointer prime, because the next prime (57251683) can be obtained adding 57251651 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57251651 - 2² = 57251647 is a prime.

It is not a weakly prime, because it can be changed into another prime (57251641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28625825 + 28625826.

It is an arithmetic number, because the mean of its divisors is an integer number (28625826).

Almost surely, 2^57251651 is an apocalyptic number.

57251651 is a deficient number, since it is larger than the sum of its proper divisors (1).

57251651 is an equidigital number, since it uses as much as digits as its factorization.

57251651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10500, while the sum is 32.

The square root of 57251651 is about 7566.4820755751. The cubic root of 57251651 is about 385.4156437639.

The spelling of 57251651 in words is "fifty-seven million, two hundred fifty-one thousand, six hundred fifty-one".