556813480 has 16 divisors (see below), whose sum is σ = 1252830420. Its totient is φ = 222725376.

The previous prime is 556813471. The next prime is 556813507. The reversal of 556813480 is 84318655.

It can be written as a sum of positive squares in 2 ways, for example, as 550653156 + 6160324 = 23466^2 + 2482^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 13920337 = 556813480 / (5 + 5 + 6 + 8 + 1 + 3 + 4 + 8 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6960129 + ... + 6960208.

Almost surely, 2^556813480 is an apocalyptic number.

It is an amenable number.

556813480 is an abundant number, since it is smaller than the sum of its proper divisors (696016940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556813480 is a wasteful number, since it uses less digits than its factorization.

556813480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13920348 (or 13920344 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 556813480 is about 23596.8955585263. The cubic root of 556813480 is about 822.6906854260.

The spelling of 556813480 in words is "five hundred fifty-six million, eight hundred thirteen thousand, four hundred eighty".