52113447475565 has 16 divisors (see below), whose sum is σ = 74577256512768. Its totient is φ = 34181242567296.

The previous prime is 52113447475561. The next prime is 52113447475567. The reversal of 52113447475565 is 56557474431125.

It is a cyclic number.

It is not a de Polignac number, because 52113447475565 - 2² = 52113447475561 is a prime.

It is a super-2 number, since 2×52113447475565² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52113447475561) 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, 32368600112 + ... + 32368601721.

It is an arithmetic number, because the mean of its divisors is an integer number (4661078532048).

Almost surely, 2^{52113447475565} is an apocalyptic number.

It is an amenable number.

52113447475565 is a deficient number, since it is larger than the sum of its proper divisors (22463809037203).

52113447475565 is a wasteful number, since it uses less digits than its factorization.

52113447475565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64737201868.

The product of its digits is 70560000, while the sum is 59.

The spelling of 52113447475565 in words is "fifty-two trillion, one hundred thirteen billion, four hundred forty-seven million, four hundred seventy-five thousand, five hundred sixty-five".