55966770 has 48 divisors (see below), whose sum is σ = 146097432. Its totient is φ = 14864640.

The previous prime is 55966739. The next prime is 55966777. The reversal of 55966770 is 7766955.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 55935441 + 31329 = 7479^2 + 177^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (55966777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24184 + ... + 26396.

Almost surely, 2^55966770 is an apocalyptic number.

55966770 is an abundant number, since it is smaller than the sum of its proper divisors (90130662).

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

55966770 is a wasteful number, since it uses less digits than its factorization.

55966770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507 (or 2504 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 45.

The square root of 55966770 is about 7481.0941713094. The cubic root of 55966770 is about 382.5105469346.

The spelling of 55966770 in words is "fifty-five million, nine hundred sixty-six thousand, seven hundred seventy".