55172050 has 24 divisors (see below), whose sum is σ = 102903012. Its totient is φ = 22008000.

The previous prime is 55172027. The next prime is 55172063. The reversal of 55172050 is 5027155.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 10936249 + 44235801 = 3307^2 + 6651^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19740 + ... + 22360.

Almost surely, 2^55172050 is an apocalyptic number.

55172050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55172050 is a deficient number, since it is larger than the sum of its proper divisors (47730962).

55172050 is a wasteful number, since it uses less digits than its factorization.

55172050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054 (or 3049 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 55172050 is about 7427.7890384690. The cubic root of 55172050 is about 380.6913775305.

The spelling of 55172050 in words is "fifty-five million, one hundred seventy-two thousand, fifty".