52195663591 has 16 divisors (see below), whose sum is σ = 55594000000. Its totient is φ = 48864858336.

The previous prime is 52195663589. The next prime is 52195663603. The reversal of 52195663591 is 19536659125.

It is a cyclic number.

It is not a de Polignac number, because 52195663591 - 2¹ = 52195663589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52195663691) 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, 751660 + ... + 818158.

It is an arithmetic number, because the mean of its divisors is an integer number (3474625000).

Almost surely, 2^52195663591 is an apocalyptic number.

52195663591 is a deficient number, since it is larger than the sum of its proper divisors (3398336409).

52195663591 is a wasteful number, since it uses less digits than its factorization.

52195663591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67006.

The product of its digits is 2187000, while the sum is 52.

The spelling of 52195663591 in words is "fifty-two billion, one hundred ninety-five million, six hundred sixty-three thousand, five hundred ninety-one".