55303172 has 24 divisors (see below), whose sum is σ = 98280000. Its totient is φ = 27226656.

The previous prime is 55303169. The next prime is 55303181. The reversal of 55303172 is 27130355.

It is a super-3 number, since 3×55303172³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110579 + ... + 111077.

It is an arithmetic number, because the mean of its divisors is an integer number (4095000).

Almost surely, 2^55303172 is an apocalyptic number.

It is an amenable number.

55303172 is a deficient number, since it is larger than the sum of its proper divisors (42976828).

55303172 is a wasteful number, since it uses less digits than its factorization.

55303172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 55303172 is about 7436.6102493004. The cubic root of 55303172 is about 380.9927228835.

The spelling of 55303172 in words is "fifty-five million, three hundred three thousand, one hundred seventy-two".