53153065318521 has 128 divisors (see below), whose sum is σ = 86096605593600. Its totient is φ = 28534055639040.

The previous prime is 53153065318519. The next prime is 53153065318523. The reversal of 53153065318521 is 12581356035135.

It is an interprime number because it is at equal distance from previous prime (53153065318519) and next prime (53153065318523).

It is not a de Polignac number, because 53153065318521 - 2¹ = 53153065318519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53153065318523) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1241031735 + ... + 1241074563.

It is an arithmetic number, because the mean of its divisors is an integer number (672629731200).

Almost surely, 2^{53153065318521} is an apocalyptic number.

It is an amenable number.

53153065318521 is a deficient number, since it is larger than the sum of its proper divisors (32943540275079).

53153065318521 is a wasteful number, since it uses less digits than its factorization.

53153065318521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43319.

The product of its (nonzero) digits is 1620000, while the sum is 48.

The spelling of 53153065318521 in words is "fifty-three trillion, one hundred fifty-three billion, sixty-five million, three hundred eighteen thousand, five hundred twenty-one".