52721467501540 has 96 divisors (see below), whose sum is σ = 111428403609600. Its totient is φ = 20953172275200.

The previous prime is 52721467501517. The next prime is 52721467501543. The reversal of 52721467501540 is 4510576412725.

It is not an unprimeable number, because it can be changed into a prime (52721467501543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4119180061 + ... + 4119192859.

It is an arithmetic number, because the mean of its divisors is an integer number (1160712537600).

Almost surely, 2^{52721467501540} is an apocalyptic number.

It is an amenable number.

52721467501540 is an abundant number, since it is smaller than the sum of its proper divisors (58706936108060).

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

52721467501540 is a wasteful number, since it uses less digits than its factorization.

52721467501540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14933 (or 14931 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 52721467501540 in words is "fifty-two trillion, seven hundred twenty-one billion, four hundred sixty-seven million, five hundred one thousand, five hundred forty".