57122197 has 4 divisors (see below), whose sum is σ = 62315136. Its totient is φ = 51929260.

The previous prime is 57122173. The next prime is 57122201. The reversal of 57122197 is 79122175.

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 a de Polignac number, because none of the positive numbers 2^k-57122197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57122137) 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, 2596453 + ... + 2596474.

It is an arithmetic number, because the mean of its divisors is an integer number (15578784).

Almost surely, 2^57122197 is an apocalyptic number.

It is an amenable number.

57122197 is a deficient number, since it is larger than the sum of its proper divisors (5192939).

57122197 is a wasteful number, since it uses less digits than its factorization.

57122197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5192938.

The product of its digits is 8820, while the sum is 34.

The square root of 57122197 is about 7557.9227966419. The cubic root of 57122197 is about 385.1249316263.

The spelling of 57122197 in words is "fifty-seven million, one hundred twenty-two thousand, one hundred ninety-seven".