55043625 has 64 divisors (see below), whose sum is σ = 112799232. Its totient is φ = 23212800.

The previous prime is 55043617. The next prime is 55043647. The reversal of 55043625 is 52634055.

It is not a de Polignac number, because 55043625 - 2³ = 55043617 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55043592 and 55043601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33319 + ... + 34931.

It is an arithmetic number, because the mean of its divisors is an integer number (1762488).

Almost surely, 2^55043625 is an apocalyptic number.

It is an amenable number.

55043625 is an abundant number, since it is smaller than the sum of its proper divisors (57755607).

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

55043625 is a wasteful number, since it uses less digits than its factorization.

55043625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651 (or 1641 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 55043625 is about 7419.1391010009. The cubic root of 55043625 is about 380.3957672619.

The spelling of 55043625 in words is "fifty-five million, forty-three thousand, six hundred twenty-five".