20514425125 has 32 divisors (see below), whose sum is σ = 26121947904. Its totient is φ = 16079128000.

The previous prime is 20514425117. The next prime is 20514425177. The reversal of 20514425125 is 52152441502.

It is not a de Polignac number, because 20514425125 - 2³ = 20514425117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5874630 + ... + 5878120.

It is an arithmetic number, because the mean of its divisors is an integer number (816310872).

Almost surely, 2^20514425125 is an apocalyptic number.

20514425125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20514425125 is a deficient number, since it is larger than the sum of its proper divisors (5607522779).

20514425125 is an equidigital number, since it uses as much as digits as its factorization.

20514425125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446 (or 4436 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 20514425125 its reverse (52152441502), we get a palindrome (72666866627).

The spelling of 20514425125 in words is "twenty billion, five hundred fourteen million, four hundred twenty-five thousand, one hundred twenty-five".