53657215580 has 24 divisors (see below), whose sum is σ = 113118607728. Its totient is φ = 21379371008.

The previous prime is 53657215541. The next prime is 53657215603. The reversal of 53657215580 is 8551275635.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5214434 + ... + 5224713.

It is an arithmetic number, because the mean of its divisors is an integer number (4713275322).

Almost surely, 2^53657215580 is an apocalyptic number.

It is an amenable number.

53657215580 is an abundant number, since it is smaller than the sum of its proper divisors (59461392148).

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

53657215580 is a wasteful number, since it uses less digits than its factorization.

53657215580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10439413 (or 10439411 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 47.

The spelling of 53657215580 in words is "fifty-three billion, six hundred fifty-seven million, two hundred fifteen thousand, five hundred eighty".