52543613402261 has 8 divisors (see below), whose sum is σ = 55619542656480. Its totient is φ = 49551956182512.

The previous prime is 52543613402249. The next prime is 52543613402279. The reversal of 52543613402261 is 16220431634525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52543613402261 - 2³⁰ = 52542539660437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52543613402461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21068007335 + ... + 21068009828.

It is an arithmetic number, because the mean of its divisors is an integer number (6952442832060).

Almost surely, 2^{52543613402261} is an apocalyptic number.

It is an amenable number.

52543613402261 is a deficient number, since it is larger than the sum of its proper divisors (3075929254219).

52543613402261 is a wasteful number, since it uses less digits than its factorization.

52543613402261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42136017235.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 52543613402261 in words is "fifty-two trillion, five hundred forty-three billion, six hundred thirteen million, four hundred two thousand, two hundred sixty-one".