55152772 has 12 divisors (see below), whose sum is σ = 96613020. Its totient is φ = 27549056.

The previous prime is 55152739. The next prime is 55152793. The reversal of 55152772 is 27725155.

It can be written as a sum of positive squares in 2 ways, for example, as 40144896 + 15007876 = 6336^2 + 3874^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897 + ... + 10672.

It is an arithmetic number, because the mean of its divisors is an integer number (8051085).

Almost surely, 2^55152772 is an apocalyptic number.

It is an amenable number.

55152772 is a deficient number, since it is larger than the sum of its proper divisors (41460248).

55152772 is a wasteful number, since it uses less digits than its factorization.

55152772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13670 (or 13668 counting only the distinct ones).

The product of its digits is 24500, while the sum is 34.

The square root of 55152772 is about 7426.4912307226. The cubic root of 55152772 is about 380.6470324722.

The spelling of 55152772 in words is "fifty-five million, one hundred fifty-two thousand, seven hundred seventy-two".