55192772 has 12 divisors (see below), whose sum is σ = 99703296. Its totient is φ = 26706120.

The previous prime is 55192757. The next prime is 55192783. The reversal of 55192772 is 27729155.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 222428 + ... + 222675.

It is an arithmetic number, because the mean of its divisors is an integer number (8308608).

Almost surely, 2^55192772 is an apocalyptic number.

It is an amenable number.

55192772 is a deficient number, since it is larger than the sum of its proper divisors (44510524).

55192772 is a wasteful number, since it uses less digits than its factorization.

55192772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445138 (or 445136 counting only the distinct ones).

The product of its digits is 44100, while the sum is 38.

The square root of 55192772 is about 7429.1838044297. The cubic root of 55192772 is about 380.7390326947.

The spelling of 55192772 in words is "fifty-five million, one hundred ninety-two thousand, seven hundred seventy-two".