57409643 has 2 divisors, whose sum is σ = 57409644. Its totient is φ = 57409642.

The previous prime is 57409619. The next prime is 57409657. The reversal of 57409643 is 34690475.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57409643 - 2⁶ = 57409579 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 57409597 and 57409606.

It is not a weakly prime, because it can be changed into another prime (57409243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28704821 + 28704822.

It is an arithmetic number, because the mean of its divisors is an integer number (28704822).

Almost surely, 2^57409643 is an apocalyptic number.

57409643 is a deficient number, since it is larger than the sum of its proper divisors (1).

57409643 is an equidigital number, since it uses as much as digits as its factorization.

57409643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 57409643 is about 7576.9151374422. The cubic root of 57409643 is about 385.7698499155.

The spelling of 57409643 in words is "fifty-seven million, four hundred nine thousand, six hundred forty-three".