557345851 has 2 divisors, whose sum is σ = 557345852. Its totient is φ = 557345850.

The previous prime is 557345843. The next prime is 557345861. The reversal of 557345851 is 158543755.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 557345851 - 2³ = 557345843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 557345798 and 557345807.

It is not a weakly prime, because it can be changed into another prime (557345861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278672925 + 278672926.

It is an arithmetic number, because the mean of its divisors is an integer number (278672926).

Almost surely, 2^557345851 is an apocalyptic number.

557345851 is a deficient number, since it is larger than the sum of its proper divisors (1).

557345851 is an equidigital number, since it uses as much as digits as its factorization.

557345851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420000, while the sum is 43.

The square root of 557345851 is about 23608.1733939752. The cubic root of 557345851 is about 822.9527942345.

The spelling of 557345851 in words is "five hundred fifty-seven million, three hundred forty-five thousand, eight hundred fifty-one".