20050531332531 has 32 divisors (see below), whose sum is σ = 31036251133440. Its totient is φ = 11277325115904.

The previous prime is 20050531332523. The next prime is 20050531332541. The reversal of 20050531332531 is 13523313505002.

It is not a de Polignac number, because 20050531332531 - 2³ = 20050531332523 is a prime.

It is a super-2 number, since 2×20050531332531² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20050531332492 and 20050531332501.

It is not an unprimeable number, because it can be changed into a prime (20050531332541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20913030 + ... + 21850763.

It is an arithmetic number, because the mean of its divisors is an integer number (969882847920).

Almost surely, 2^{20050531332531} is an apocalyptic number.

20050531332531 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20050531332531 is a deficient number, since it is larger than the sum of its proper divisors (10985719800909).

20050531332531 is a wasteful number, since it uses less digits than its factorization.

20050531332531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42764155.

The product of its (nonzero) digits is 40500, while the sum is 33.

Adding to 20050531332531 its reverse (13523313505002), we get a palindrome (33573844837533).

The spelling of 20050531332531 in words is "twenty trillion, fifty billion, five hundred thirty-one million, three hundred thirty-two thousand, five hundred thirty-one".