52170561004631 has 4 divisors (see below), whose sum is σ = 52170582534600. Its totient is φ = 52170539474664.

The previous prime is 52170561004621. The next prime is 52170561004663. The reversal of 52170561004631 is 13640016507125.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52170561004631 - 2²² = 52170556810327 is a prime.

It is a super-2 number, since 2×52170561004631² (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 (52170561004621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6590696 + ... + 12156413.

It is an arithmetic number, because the mean of its divisors is an integer number (13042645633650).

Almost surely, 2^{52170561004631} is an apocalyptic number.

52170561004631 is a deficient number, since it is larger than the sum of its proper divisors (21529969).

52170561004631 is a wasteful number, since it uses less digits than its factorization.

52170561004631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21529968.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 52170561004631 in words is "fifty-two trillion, one hundred seventy billion, five hundred sixty-one million, four thousand, six hundred thirty-one".