556725403 has 32 divisors (see below), whose sum is σ = 647628800. Its totient is φ = 474304896.

The previous prime is 556725397. The next prime is 556725437. The reversal of 556725403 is 304527655.

It is not a de Polignac number, because 556725403 - 2⁵ = 556725371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556725443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2009701 + ... + 2009977.

It is an arithmetic number, because the mean of its divisors is an integer number (20238400).

Almost surely, 2^556725403 is an apocalyptic number.

556725403 is a deficient number, since it is larger than the sum of its proper divisors (90903397).

556725403 is a wasteful number, since it uses less digits than its factorization.

556725403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 556725403 is about 23595.0292010839. The cubic root of 556725403 is about 822.6473052811.

It can be divided in two parts, 55672 and 5403, that added together give a triangular number (61075 = T₃₄₉).

The spelling of 556725403 in words is "five hundred fifty-six million, seven hundred twenty-five thousand, four hundred three".