55776606 has 32 divisors (see below), whose sum is σ = 113757696. Its totient is φ = 18228000.

The previous prime is 55776601. The next prime is 55776613. The reversal of 55776606 is 60667755.

It is a super-2 number, since 2×55776606² = 6222059553758472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55776601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132276 + ... + 132696.

It is an arithmetic number, because the mean of its divisors is an integer number (3554928).

Almost surely, 2^55776606 is an apocalyptic number.

55776606 is an abundant number, since it is smaller than the sum of its proper divisors (57981090).

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

55776606 is a wasteful number, since it uses less digits than its factorization.

55776606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808.

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 55776606 is about 7468.3737185548. The cubic root of 55776606 is about 382.0768236342.

The spelling of 55776606 in words is "fifty-five million, seven hundred seventy-six thousand, six hundred six".