55663552 has 28 divisors (see below), whose sum is σ = 126238000. Its totient is φ = 23855616.

The previous prime is 55663549. The next prime is 55663561. The reversal of 55663552 is 25536655.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61677 + ... + 62572.

It is an arithmetic number, because the mean of its divisors is an integer number (4508500).

Almost surely, 2^55663552 is an apocalyptic number.

It is an amenable number.

55663552 is an abundant number, since it is smaller than the sum of its proper divisors (70574448).

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

55663552 is a wasteful number, since it uses less digits than its factorization.

55663552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124268 (or 124258 counting only the distinct ones).

The product of its digits is 135000, while the sum is 37.

The square root of 55663552 is about 7460.8010293802. The cubic root of 55663552 is about 381.8185042806.

The spelling of 55663552 in words is "fifty-five million, six hundred sixty-three thousand, five hundred fifty-two".