25542925 has 12 divisors (see below), whose sum is σ = 33536916. Its totient is φ = 19232000.

The previous prime is 25542917. The next prime is 25542947. The reversal of 25542925 is 52924552.

It can be written as a sum of positive squares in 6 ways, for example, as 9 + 25542916 = 3^2 + 5054^2 .

It is not a de Polignac number, because 25542925 - 2³ = 25542917 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 11 ways as a sum of consecutive naturals, for example, 29626 + ... + 30475.

It is an arithmetic number, because the mean of its divisors is an integer number (2794743).

Almost surely, 2^25542925 is an apocalyptic number.

25542925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25542925 is a deficient number, since it is larger than the sum of its proper divisors (7993991).

25542925 is a wasteful number, since it uses less digits than its factorization.

25542925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60128 (or 60123 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 25542925 is about 5054.0008903838. Note that the first 3 decimals coincide. The cubic root of 25542925 is about 294.5033297310.

The spelling of 25542925 in words is "twenty-five million, five hundred forty-two thousand, nine hundred twenty-five".