557520377 has 2 divisors, whose sum is σ = 557520378. Its totient is φ = 557520376.

The previous prime is 557520371. The next prime is 557520427. The reversal of 557520377 is 773025755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 555827776 + 1692601 = 23576^2 + 1301^2 .

It is a cyclic number.

It is not a de Polignac number, because 557520377 - 2⁴ = 557520361 is a prime.

It is not a weakly prime, because it can be changed into another prime (557520371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278760188 + 278760189.

It is an arithmetic number, because the mean of its divisors is an integer number (278760189).

Almost surely, 2^557520377 is an apocalyptic number.

It is an amenable number.

557520377 is a deficient number, since it is larger than the sum of its proper divisors (1).

557520377 is an equidigital number, since it uses as much as digits as its factorization.

557520377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 257250, while the sum is 41.

The square root of 557520377 is about 23611.8694092611. The cubic root of 557520377 is about 823.0386844528.

It can be divided in two parts, 5575 and 20377, that added together give a palindrome (25952).

The spelling of 557520377 in words is "five hundred fifty-seven million, five hundred twenty thousand, three hundred seventy-seven".