52207390191 has 16 divisors (see below), whose sum is σ = 78387637248. Its totient is φ = 30620169600.

The previous prime is 52207390189. The next prime is 52207390219. The reversal of 52207390191 is 19109370225.

It is not a de Polignac number, because 52207390191 - 2¹ = 52207390189 is a prime.

It is a super-2 number, since 2×52207390191² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52207390591) 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, 25515786 + ... + 25517831.

It is an arithmetic number, because the mean of its divisors is an integer number (4899227328).

Almost surely, 2^52207390191 is an apocalyptic number.

52207390191 is a deficient number, since it is larger than the sum of its proper divisors (26180247057).

52207390191 is a wasteful number, since it uses less digits than its factorization.

52207390191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51033662.

The product of its (nonzero) digits is 34020, while the sum is 39.

The spelling of 52207390191 in words is "fifty-two billion, two hundred seven million, three hundred ninety thousand, one hundred ninety-one".