556420020325 has 12 divisors (see below), whose sum is σ = 743034735268. Its totient is φ = 410894784000.

The previous prime is 556420020311. The next prime is 556420020367. The reversal of 556420020325 is 523020024655.

It can be written as a sum of positive squares in 6 ways, for example, as 96471684 + 556323548641 = 9822^2 + 745871^2 .

It is not a de Polignac number, because 556420020325 - 2¹⁷ = 556419889253 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 856030476 + ... + 856031125.

Almost surely, 2^556420020325 is an apocalyptic number.

It is an amenable number.

556420020325 is a deficient number, since it is larger than the sum of its proper divisors (186614714943).

556420020325 is a wasteful number, since it uses less digits than its factorization.

556420020325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712061624 (or 1712061619 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 556420020325 in words is "five hundred fifty-six billion, four hundred twenty million, twenty thousand, three hundred twenty-five".