557558667 has 16 divisors (see below), whose sum is σ = 869488000. Its totient is φ = 352141992.

The previous prime is 557558647. The next prime is 557558681. The reversal of 557558667 is 766855755.

557558667 is a `hidden beast` number, since 5 + 57 + 5 + 586 + 6 + 7 = 666.

It is not a de Polignac number, because 557558667 - 2⁷ = 557558539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557558647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542917 + ... + 543942.

It is an arithmetic number, because the mean of its divisors is an integer number (54343000).

Almost surely, 2^557558667 is an apocalyptic number.

557558667 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

557558667 is a deficient number, since it is larger than the sum of its proper divisors (311929333).

557558667 is a wasteful number, since it uses less digits than its factorization.

557558667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086887 (or 1086881 counting only the distinct ones).

The product of its digits is 8820000, while the sum is 54.

The square root of 557558667 is about 23612.6802163583. The cubic root of 557558667 is about 823.0575258746.

The spelling of 557558667 in words is "five hundred fifty-seven million, five hundred fifty-eight thousand, six hundred sixty-seven".