56779090 has 16 divisors (see below), whose sum is σ = 104965272. Its totient is φ = 22097664.

The previous prime is 56779061. The next prime is 56779097. The reversal of 56779090 is 9097765.

It can be written as a sum of positive squares in 4 ways, for example, as 56265001 + 514089 = 7501^2 + 717^2 .

It is a super-2 number, since 2×56779090² = 6447730122456200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56779097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76359 + ... + 77098.

Almost surely, 2^56779090 is an apocalyptic number.

56779090 is a deficient number, since it is larger than the sum of its proper divisors (48186182).

56779090 is a wasteful number, since it uses less digits than its factorization.

56779090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153501.

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 56779090 is about 7535.1901104086. The cubic root of 56779090 is about 384.3522926194.

The spelling of 56779090 in words is "fifty-six million, seven hundred seventy-nine thousand, ninety".