55763172 has 72 divisors (see below), whose sum is σ = 150608640. Its totient is φ = 17357760.

The previous prime is 55763171. The next prime is 55763189. The reversal of 55763172 is 27136755.

55763172 is a `hidden beast` number, since 557 + 6 + 31 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55763171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31503 + ... + 33225.

Almost surely, 2^55763172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55763172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75304320).

55763172 is an abundant number, since it is smaller than the sum of its proper divisors (94845468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55763172 is a wasteful number, since it uses less digits than its factorization.

55763172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793 (or 1788 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 55763172 is about 7467.4742718003. The cubic root of 55763172 is about 382.0461463034.

The spelling of 55763172 in words is "fifty-five million, seven hundred sixty-three thousand, one hundred seventy-two".