57319643 has 2 divisors, whose sum is σ = 57319644. Its totient is φ = 57319642.

The previous prime is 57319501. The next prime is 57319693. The reversal of 57319643 is 34691375.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57319643 - 2¹² = 57315547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57319597 and 57319606.

It is not a weakly prime, because it can be changed into another prime (57319693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28659821 + 28659822.

It is an arithmetic number, because the mean of its divisors is an integer number (28659822).

Almost surely, 2^57319643 is an apocalyptic number.

57319643 is a deficient number, since it is larger than the sum of its proper divisors (1).

57319643 is an equidigital number, since it uses as much as digits as its factorization.

57319643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 57319643 is about 7570.9737154477. The cubic root of 57319643 is about 385.5681564750.

The spelling of 57319643 in words is "fifty-seven million, three hundred nineteen thousand, six hundred forty-three".