20012232525 has 24 divisors (see below), whose sum is σ = 33091480224. Its totient is φ = 10671710400.

The previous prime is 20012232511. The next prime is 20012232593. The reversal of 20012232525 is 52523221002.

It is not a de Polignac number, because 20012232525 - 2⁴ = 20012232509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012232495 and 20012232504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 722227 + ... + 749423.

It is an arithmetic number, because the mean of its divisors is an integer number (1378811676).

Almost surely, 2^20012232525 is an apocalyptic number.

20012232525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20012232525 is a deficient number, since it is larger than the sum of its proper divisors (13079247699).

20012232525 is a wasteful number, since it uses less digits than its factorization.

20012232525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37021 (or 37016 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 20012232525 its reverse (52523221002), we get a palindrome (72535453527).

The spelling of 20012232525 in words is "twenty billion, twelve million, two hundred thirty-two thousand, five hundred twenty-five".