556899780 has 24 divisors (see below), whose sum is σ = 1559319552. Its totient is φ = 148506592.

The previous prime is 556899767. The next prime is 556899793. The reversal of 556899780 is 87998655.

It is an interprime number because it is at equal distance from previous prime (556899767) and next prime (556899793).

It is a self number, because there is not a number n which added to its sum of digits gives 556899780.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4640772 + ... + 4640891.

It is an arithmetic number, because the mean of its divisors is an integer number (64971648).

Almost surely, 2^556899780 is an apocalyptic number.

It is an amenable number.

556899780 is an abundant number, since it is smaller than the sum of its proper divisors (1002419772).

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

556899780 is a wasteful number, since it uses less digits than its factorization.

556899780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9281675 (or 9281673 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 57.

The square root of 556899780 is about 23598.7241180535. The cubic root of 556899780 is about 822.7331859168.

The spelling of 556899780 in words is "five hundred fifty-six million, eight hundred ninety-nine thousand, seven hundred eighty".