56961135228 has 24 divisors (see below), whose sum is σ = 132922677888. Its totient is φ = 18985136176.

The previous prime is 56961135223. The next prime is 56961135229. The reversal of 56961135228 is 82253116965.

It is a super-2 number, since 2×56961135228² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56961135223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111576 + ... + 355487.

It is an arithmetic number, because the mean of its divisors is an integer number (5538444912).

Almost surely, 2^56961135228 is an apocalyptic number.

It is an amenable number.

56961135228 is an abundant number, since it is smaller than the sum of its proper divisors (75961542660).

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

56961135228 is a wasteful number, since it uses less digits than its factorization.

56961135228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477233 (or 477231 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The spelling of 56961135228 in words is "fifty-six billion, nine hundred sixty-one million, one hundred thirty-five thousand, two hundred twenty-eight".