55610561630 has 32 divisors (see below), whose sum is σ = 107817091200. Its totient is φ = 20529672192.

The previous prime is 55610561603. The next prime is 55610561659. The reversal of 55610561630 is 3616501655.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816011 + ... + 881529.

It is an arithmetic number, because the mean of its divisors is an integer number (3369284100).

Almost surely, 2^55610561630 is an apocalyptic number.

55610561630 is a deficient number, since it is larger than the sum of its proper divisors (52206529570).

55610561630 is a wasteful number, since it uses less digits than its factorization.

55610561630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72068.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 55610561630 in words is "fifty-five billion, six hundred ten million, five hundred sixty-one thousand, six hundred thirty".