57657653 has 2 divisors, whose sum is σ = 57657654. Its totient is φ = 57657652.

The previous prime is 57657637. The next prime is 57657697. The reversal of 57657653 is 35675675.

It is an a-pointer prime, because the next prime (57657697) can be obtained adding 57657653 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52896529 + 4761124 = 7273^2 + 2182^2 .

It is a cyclic number.

It is not a de Polignac number, because 57657653 - 2⁴ = 57657637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57657623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28828826 + 28828827.

It is an arithmetic number, because the mean of its divisors is an integer number (28828827).

Almost surely, 2^57657653 is an apocalyptic number.

It is an amenable number.

57657653 is a deficient number, since it is larger than the sum of its proper divisors (1).

57657653 is an equidigital number, since it uses as much as digits as its factorization.

57657653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 661500, while the sum is 44.

The square root of 57657653 is about 7593.2636593233. The cubic root of 57657653 is about 386.3245612457.

The spelling of 57657653 in words is "fifty-seven million, six hundred fifty-seven thousand, six hundred fifty-three".