57550459 has 2 divisors, whose sum is σ = 57550460. Its totient is φ = 57550458.

The previous prime is 57550453. The next prime is 57550489. The reversal of 57550459 is 95405575.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57550459 - 2⁷ = 57550331 is a prime.

It is a super-2 number, since 2×57550459² = 6624110662221362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57550453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28775229 + 28775230.

It is an arithmetic number, because the mean of its divisors is an integer number (28775230).

Almost surely, 2^57550459 is an apocalyptic number.

57550459 is a deficient number, since it is larger than the sum of its proper divisors (1).

57550459 is an equidigital number, since it uses as much as digits as its factorization.

57550459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157500, while the sum is 40.

The square root of 57550459 is about 7586.2018823651. The cubic root of 57550459 is about 386.0850014599.

The spelling of 57550459 in words is "fifty-seven million, five hundred fifty thousand, four hundred fifty-nine".