55611552 has 24 divisors (see below), whose sum is σ = 145980576. Its totient is φ = 18537152.

The previous prime is 55611547. The next prime is 55611553. The reversal of 55611552 is 25511655.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (55611553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289548 + ... + 289739.

It is an arithmetic number, because the mean of its divisors is an integer number (6082524).

Almost surely, 2^55611552 is an apocalyptic number.

It is an amenable number.

55611552 is an abundant number, since it is smaller than the sum of its proper divisors (90369024).

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

55611552 is a wasteful number, since it uses less digits than its factorization.

55611552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579300 (or 579292 counting only the distinct ones).

The product of its digits is 7500, while the sum is 30.

The square root of 55611552 is about 7457.3153346228. The cubic root of 55611552 is about 381.6995709911.

The spelling of 55611552 in words is "fifty-five million, six hundred eleven thousand, five hundred fifty-two".