53521764244063 has 16 divisors (see below), whose sum is σ = 54227861323776. Its totient is φ = 52817148457920.

The previous prime is 53521764244037. The next prime is 53521764244103. The reversal of 53521764244063 is 36044246712535.

It is a de Polignac number, because none of the positive numbers 2^k-53521764244063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53521764244063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53521764244363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400452258 + ... + 400585888.

It is an arithmetic number, because the mean of its divisors is an integer number (3389241332736).

Almost surely, 2^{53521764244063} is an apocalyptic number.

53521764244063 is a deficient number, since it is larger than the sum of its proper divisors (706097079713).

53521764244063 is a wasteful number, since it uses less digits than its factorization.

53521764244063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139134.

The product of its (nonzero) digits is 14515200, while the sum is 52.

The spelling of 53521764244063 in words is "fifty-three trillion, five hundred twenty-one billion, seven hundred sixty-four million, two hundred forty-four thousand, sixty-three".