556960326553 has 4 divisors (see below), whose sum is σ = 558928384528. Its totient is φ = 554992268580.

The previous prime is 556960326497. The next prime is 556960326613. The reversal of 556960326553 is 355623069655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 556960326553 - 2²⁹ = 556423455641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556960326494 and 556960326503.

It is not an unprimeable number, because it can be changed into a prime (556960326053) 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, 984028563 + ... + 984029128.

It is an arithmetic number, because the mean of its divisors is an integer number (139732096132).

Almost surely, 2^556960326553 is an apocalyptic number.

It is an amenable number.

556960326553 is a deficient number, since it is larger than the sum of its proper divisors (1968057975).

556960326553 is a wasteful number, since it uses less digits than its factorization.

556960326553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968057974.

The product of its (nonzero) digits is 21870000, while the sum is 55.

The spelling of 556960326553 in words is "five hundred fifty-six billion, nine hundred sixty million, three hundred twenty-six thousand, five hundred fifty-three".