55148372 has 12 divisors (see below), whose sum is σ = 99837780. Its totient is φ = 26623296.

The previous prime is 55148351. The next prime is 55148381. The reversal of 55148372 is 27384155.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18011536 + 37136836 = 4244^2 + 6094^2 .

It is a congruent number.

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, 237593 + ... + 237824.

It is an arithmetic number, because the mean of its divisors is an integer number (8319815).

Almost surely, 2^55148372 is an apocalyptic number.

It is an amenable number.

55148372 is a deficient number, since it is larger than the sum of its proper divisors (44689408).

55148372 is a wasteful number, since it uses less digits than its factorization.

55148372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475450 (or 475448 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 55148372 is about 7426.1949880137. The cubic root of 55148372 is about 380.6369097324.

The spelling of 55148372 in words is "fifty-five million, one hundred forty-eight thousand, three hundred seventy-two".