556930551 has 4 divisors (see below), whose sum is σ = 742574072. Its totient is φ = 371287032.

The previous prime is 556930547. The next prime is 556930567. The reversal of 556930551 is 155039655.

556930551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 556930551 - 2² = 556930547 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 (556930351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92821756 + ... + 92821761.

It is an arithmetic number, because the mean of its divisors is an integer number (185643518).

Almost surely, 2^556930551 is an apocalyptic number.

556930551 is a deficient number, since it is larger than the sum of its proper divisors (185643521).

556930551 is a wasteful number, since it uses less digits than its factorization.

556930551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185643520.

The product of its (nonzero) digits is 101250, while the sum is 39.

The square root of 556930551 is about 23599.3760722609. The cubic root of 556930551 is about 822.7483387668.

The spelling of 556930551 in words is "five hundred fifty-six million, nine hundred thirty thousand, five hundred fifty-one".