556770890 has 32 divisors (see below), whose sum is σ = 1126210176. Its totient is φ = 196637760.

The previous prime is 556770887. The next prime is 556770901. The reversal of 556770890 is 98077655.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90116 + ... + 96095.

It is an arithmetic number, because the mean of its divisors is an integer number (35194068).

Almost surely, 2^556770890 is an apocalyptic number.

556770890 is an abundant number, since it is smaller than the sum of its proper divisors (569439286).

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

556770890 is a wasteful number, since it uses less digits than its factorization.

556770890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186254.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 556770890 is about 23595.9930920485. The cubic root of 556770890 is about 822.6697093476.

The spelling of 556770890 in words is "five hundred fifty-six million, seven hundred seventy thousand, eight hundred ninety".