55792772 has 18 divisors (see below), whose sum is σ = 113578542. Its totient is φ = 23911104.

The previous prime is 55792771. The next prime is 55792811. The reversal of 55792772 is 27729755.

It can be written as a sum of positive squares in only one way, i.e., 44408896 + 11383876 = 6664^2 + 3374^2 .

It is a super-2 number, since 2×55792772² = 6225666814887968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55792771) 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 5 ways as a sum of consecutive naturals, for example, 142133 + ... + 142524.

It is an arithmetic number, because the mean of its divisors is an integer number (6309919).

Almost surely, 2^55792772 is an apocalyptic number.

It is an amenable number.

55792772 is an abundant number, since it is smaller than the sum of its proper divisors (57785770).

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

55792772 is a wasteful number, since it uses less digits than its factorization.

55792772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284675 (or 284666 counting only the distinct ones).

The product of its digits is 308700, while the sum is 44.

The square root of 55792772 is about 7469.4559373491. The cubic root of 55792772 is about 382.1137331185.

The spelling of 55792772 in words is "fifty-five million, seven hundred ninety-two thousand, seven hundred seventy-two".