20120523425 has 12 divisors (see below), whose sum is σ = 25182624816. Its totient is φ = 15945982800.

The previous prime is 20120523359. The next prime is 20120523443. The reversal of 20120523425 is 52432502102.

It is not a de Polignac number, because 20120523425 - 2⁸ = 20120523169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20120523394 and 20120523403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3758171 + ... + 3763520.

It is an arithmetic number, because the mean of its divisors is an integer number (2098552068).

Almost surely, 2^20120523425 is an apocalyptic number.

20120523425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20120523425 is a deficient number, since it is larger than the sum of its proper divisors (5062101391).

20120523425 is a wasteful number, since it uses less digits than its factorization.

20120523425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7521808 (or 7521803 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 20120523425 in words is "twenty billion, one hundred twenty million, five hundred twenty-three thousand, four hundred twenty-five".