57563657 has 4 divisors (see below), whose sum is σ = 57715920. Its totient is φ = 57411396.

The previous prime is 57563651. The next prime is 57563677. The reversal of 57563657 is 75636575.

57563657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57563657 - 2⁶ = 57563593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57563651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75563 + ... + 76320.

It is an arithmetic number, because the mean of its divisors is an integer number (14428980).

Almost surely, 2^57563657 is an apocalyptic number.

It is an amenable number.

57563657 is a deficient number, since it is larger than the sum of its proper divisors (152263).

57563657 is a wasteful number, since it uses less digits than its factorization.

57563657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152262.

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

The square root of 57563657 is about 7587.0717012560. The cubic root of 57563657 is about 386.1145127240.

The spelling of 57563657 in words is "fifty-seven million, five hundred sixty-three thousand, six hundred fifty-seven".