55623610 has 32 divisors (see below), whose sum is σ = 118121472. Its totient is φ = 18455040.

The previous prime is 55623599. The next prime is 55623619. The reversal of 55623610 is 1632655.

It is not an unprimeable number, because it can be changed into a prime (55623619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10647 + ... + 14986.

It is an arithmetic number, because the mean of its divisors is an integer number (3691296).

Almost surely, 2^55623610 is an apocalyptic number.

55623610 is an abundant number, since it is smaller than the sum of its proper divisors (62497862).

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

55623610 is a wasteful number, since it uses less digits than its factorization.

55623610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25678.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 55623610 is about 7458.1237586943. The cubic root of 55623610 is about 381.7271563917.

The spelling of 55623610 in words is "fifty-five million, six hundred twenty-three thousand, six hundred ten".