557471397 has 8 divisors (see below), whose sum is σ = 849480256. Its totient is φ = 318555072.

The previous prime is 557471363. The next prime is 557471399. The reversal of 557471397 is 793174755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 557471397 - 2⁸ = 557471141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557471399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13273108 + ... + 13273149.

It is an arithmetic number, because the mean of its divisors is an integer number (106185032).

Almost surely, 2^557471397 is an apocalyptic number.

It is an amenable number.

557471397 is a deficient number, since it is larger than the sum of its proper divisors (292008859).

557471397 is a wasteful number, since it uses less digits than its factorization.

557471397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26546267.

The product of its digits is 926100, while the sum is 48.

The square root of 557471397 is about 23610.8321962611. The cubic root of 557471397 is about 823.0145815279.

The spelling of 557471397 in words is "five hundred fifty-seven million, four hundred seventy-one thousand, three hundred ninety-seven".