55259424 has 72 divisors (see below), whose sum is σ = 171439632. Its totient is φ = 16744320.

The previous prime is 55259419. The next prime is 55259437. The reversal of 55259424 is 42495255.

It is a tau number, because it is divible by the number of its divisors (72).

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

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, 5554 + ... + 11889.

It is an arithmetic number, because the mean of its divisors is an integer number (2381106).

Almost surely, 2^55259424 is an apocalyptic number.

It is an amenable number.

55259424 is an abundant number, since it is smaller than the sum of its proper divisors (116180208).

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

55259424 is a wasteful number, since it uses less digits than its factorization.

55259424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17470 (or 17459 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 55259424 is about 7433.6682734704. The cubic root of 55259424 is about 380.8922339724.

The spelling of 55259424 in words is "fifty-five million, two hundred fifty-nine thousand, four hundred twenty-four".