556517020 has 24 divisors (see below), whose sum is σ = 1169257824. Its totient is φ = 222497856.

The previous prime is 556516999. The next prime is 556517021. The reversal of 556517020 is 20715655.

It is a super-2 number, since 2×556517020² = 619422387099360800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556517021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44502 + ... + 55618.

It is an arithmetic number, because the mean of its divisors is an integer number (48719076).

Almost surely, 2^556517020 is an apocalyptic number.

It is an amenable number.

556517020 is an abundant number, since it is smaller than the sum of its proper divisors (612740804).

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

556517020 is a wasteful number, since it uses less digits than its factorization.

556517020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13629 (or 13627 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 556517020 is about 23590.6129636345. The cubic root of 556517020 is about 822.5446531745.

The spelling of 556517020 in words is "five hundred fifty-six million, five hundred seventeen thousand, twenty".