53613342720 has 1040 divisors, whose sum is σ = 232157840640. Its totient is φ = 11609505792.

The previous prime is 53613342707. The next prime is 53613342737. The reversal of 53613342720 is 2724331635.

53613342720 is a `hidden beast` number, since 5 + 3 + 613 + 34 + 2 + 7 + 2 + 0 = 666.

It is a super-2 number, since 2×53613342720² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2821754871 + ... + 2821754889.

Almost surely, 2^53613342720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53613342720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116078920320).

53613342720 is an abundant number, since it is smaller than the sum of its proper divisors (178544497920).

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

53613342720 is an frugal number, since it uses more digits than its factorization.

53613342720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The spelling of 53613342720 in words is "fifty-three billion, six hundred thirteen million, three hundred forty-two thousand, seven hundred twenty".