57097619 has 2 divisors, whose sum is σ = 57097620. Its totient is φ = 57097618.

The previous prime is 57097597. The next prime is 57097631. The reversal of 57097619 is 91679075.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57097619 - 2⁸ = 57097363 is a prime.

It is a super-2 number, since 2×57097619² = 6520276190938322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57097619.

It is not a weakly prime, because it can be changed into another prime (57097639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28548809 + 28548810.

It is an arithmetic number, because the mean of its divisors is an integer number (28548810).

Almost surely, 2^57097619 is an apocalyptic number.

57097619 is a deficient number, since it is larger than the sum of its proper divisors (1).

57097619 is an equidigital number, since it uses as much as digits as its factorization.

57097619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 57097619 is about 7556.2966458444. The cubic root of 57097619 is about 385.0696877282.

It can be divided in two parts, 570 and 97619, that added together give a palindrome (98189).

The spelling of 57097619 in words is "fifty-seven million, ninety-seven thousand, six hundred nineteen".