555079491 has 12 divisors (see below), whose sum is σ = 813075120. Its totient is φ = 364840560.

The previous prime is 555079477. The next prime is 555079501. The reversal of 555079491 is 194970555.

555079491 is a `hidden beast` number, since 5 + 550 + 7 + 9 + 4 + 91 = 666.

It is not a de Polignac number, because 555079491 - 2²⁹ = 18208579 is a prime.

It is a super-2 number, since 2×555079491² = 616226482657638162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (555079411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433696 + ... + 434973.

It is an arithmetic number, because the mean of its divisors is an integer number (67756260).

Almost surely, 2^555079491 is an apocalyptic number.

555079491 is a deficient number, since it is larger than the sum of its proper divisors (257995629).

555079491 is a wasteful number, since it uses less digits than its factorization.

555079491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868746 (or 868743 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The square root of 555079491 is about 23560.1250208907. The cubic root of 555079491 is about 821.8358091082.

The spelling of 555079491 in words is "five hundred fifty-five million, seventy-nine thousand, four hundred ninety-one".