57220519 has 2 divisors, whose sum is σ = 57220520. Its totient is φ = 57220518.

The previous prime is 57220511. The next prime is 57220529. The reversal of 57220519 is 91502275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57220519 - 2³ = 57220511 is a prime.

It is a super-2 number, since 2×57220519² = 6548375589258722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57220511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28610259 + 28610260.

It is an arithmetic number, because the mean of its divisors is an integer number (28610260).

Almost surely, 2^57220519 is an apocalyptic number.

57220519 is a deficient number, since it is larger than the sum of its proper divisors (1).

57220519 is an equidigital number, since it uses as much as digits as its factorization.

57220519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 57220519 is about 7564.4245650281. The cubic root of 57220519 is about 385.3457713372.

The spelling of 57220519 in words is "fifty-seven million, two hundred twenty thousand, five hundred nineteen".