52659486720 has 460 divisors, whose sum is σ = 194884117824. Its totient is φ = 13589544960.

The previous prime is 52659486709. The next prime is 52659486743. The reversal of 52659486720 is 2768495625.

52659486720 is a `hidden beast` number, since 5 + 26 + 594 + 8 + 6 + 7 + 20 = 666.

It is a super-2 number, since 2×52659486720² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1698693105 + ... + 1698693135.

Almost surely, 2^52659486720 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 52659486720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97442058912).

52659486720 is an abundant number, since it is smaller than the sum of its proper divisors (142224631104).

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

52659486720 is an frugal number, since it uses more digits than its factorization.

52659486720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 52659486720 in words is "fifty-two billion, six hundred fifty-nine million, four hundred eighty-six thousand, seven hundred twenty".