20125465 has 16 divisors (see below), whose sum is σ = 26046720. Its totient is φ = 14878080.

The previous prime is 20125453. The next prime is 20125471. The reversal of 20125465 is 56452102.

It is not a de Polignac number, because 20125465 - 2⁹ = 20124953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1312 + ... + 6478.

It is an arithmetic number, because the mean of its divisors is an integer number (1627920).

Almost surely, 2^20125465 is an apocalyptic number.

It is an amenable number.

20125465 is a deficient number, since it is larger than the sum of its proper divisors (5921255).

20125465 is a wasteful number, since it uses less digits than its factorization.

20125465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5232.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 20125465 is about 4486.1414378060. The cubic root of 20125465 is about 272.0081862084.

Adding to 20125465 its reverse (56452102), we get a palindrome (76577567).

The spelling of 20125465 in words is "twenty million, one hundred twenty-five thousand, four hundred sixty-five".