55972670 has 128 divisors (see below), whose sum is σ = 127733760. Its totient is φ = 17418240.

The previous prime is 55972649. The next prime is 55972673. The reversal of 55972670 is 7627955.

Added to its reverse (7627955) it gives a square (63600625 = 7975²).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55972673) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1301669 + ... + 1301711.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^55972670 is an apocalyptic number.

55972670 is an abundant number, since it is smaller than the sum of its proper divisors (71761090).

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

55972670 is a wasteful number, since it uses less digits than its factorization.

55972670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 55972670 is about 7481.4884882622. The cubic root of 55972670 is about 382.5239878444.

Adding to 55972670 its reverse (7627955), we get a square (63600625 = 7975²).

The spelling of 55972670 in words is "fifty-five million, nine hundred seventy-two thousand, six hundred seventy".