20375535051 has 6 divisors (see below), whose sum is σ = 29431328420. Its totient is φ = 13583690028.

The previous prime is 20375535043. The next prime is 20375535097. The reversal of 20375535051 is 15053557302.

20375535051 is a `hidden beast` number, since 2 + 0 + 3 + 7 + 553 + 50 + 51 = 666.

It is not a de Polignac number, because 20375535051 - 2³ = 20375535043 is a prime.

It is a super-2 number, since 2×20375535051² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20375534997 and 20375535015.

It is not an unprimeable number, because it can be changed into a prime (20375335051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1131974161 + ... + 1131974178.

Almost surely, 2^20375535051 is an apocalyptic number.

20375535051 is a deficient number, since it is larger than the sum of its proper divisors (9055793369).

20375535051 is a wasteful number, since it uses less digits than its factorization.

20375535051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263948345 (or 2263948342 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The spelling of 20375535051 in words is "twenty billion, three hundred seventy-five million, five hundred thirty-five thousand, fifty-one".