55751630 has 32 divisors (see below), whose sum is σ = 113257440. Its totient is φ = 19573120.

The previous prime is 55751629. The next prime is 55751669. The reversal of 55751630 is 3615755.

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, 5549 + ... + 11928.

It is an arithmetic number, because the mean of its divisors is an integer number (3539295).

Almost surely, 2^55751630 is an apocalyptic number.

55751630 is an abundant number, since it is smaller than the sum of its proper divisors (57505810).

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

55751630 is a wasteful number, since it uses less digits than its factorization.

55751630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17524.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 55751630 is about 7466.7014136096. The cubic root of 55751630 is about 382.0197855308.

The spelling of 55751630 in words is "fifty-five million, seven hundred fifty-one thousand, six hundred thirty".