57653897 has 4 divisors (see below), whose sum is σ = 65890176. Its totient is φ = 49417620.

The previous prime is 57653887. The next prime is 57653899. The reversal of 57653897 is 79835675.

It is a happy number.

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 not a de Polignac number, because 57653897 - 2⁶ = 57653833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57653899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4118129 + ... + 4118142.

It is an arithmetic number, because the mean of its divisors is an integer number (16472544).

Almost surely, 2^57653897 is an apocalyptic number.

It is an amenable number.

57653897 is a deficient number, since it is larger than the sum of its proper divisors (8236279).

57653897 is an equidigital number, since it uses as much as digits as its factorization.

57653897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8236278.

The product of its digits is 1587600, while the sum is 50.

The square root of 57653897 is about 7593.0163308135. The cubic root of 57653897 is about 386.3161722665.

The spelling of 57653897 in words is "fifty-seven million, six hundred fifty-three thousand, eight hundred ninety-seven".