20251885522319 has 24 divisors (see below), whose sum is σ = 23376895598160. Its totient is φ = 17396976384000.

The previous prime is 20251885522313. The next prime is 20251885522321. The reversal of 20251885522319 is 91322558815202.

It is not a de Polignac number, because 20251885522319 - 2¹² = 20251885518223 is a prime.

It is a super-2 number, since 2×20251885522319² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20251885522313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5010482 + ... + 8099919.

It is an arithmetic number, because the mean of its divisors is an integer number (974037316590).

Almost surely, 2^{20251885522319} is an apocalyptic number.

20251885522319 is a deficient number, since it is larger than the sum of its proper divisors (3125010075841).

20251885522319 is a wasteful number, since it uses less digits than its factorization.

20251885522319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13110839 (or 13110820 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 53.

The spelling of 20251885522319 in words is "twenty trillion, two hundred fifty-one billion, eight hundred eighty-five million, five hundred twenty-two thousand, three hundred nineteen".