25542825 has 48 divisors (see below), whose sum is σ = 52663296. Its totient is φ = 10612800.

The previous prime is 25542787. The next prime is 25542841. The reversal of 25542825 is 52824552.

It is a happy number.

It is not a de Polignac number, because 25542825 - 2⁷ = 25542697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3564 + ... + 7986.

It is an arithmetic number, because the mean of its divisors is an integer number (1097152).

Almost surely, 2^25542825 is an apocalyptic number.

25542825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25542825 is an abundant number, since it is smaller than the sum of its proper divisors (27120471).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25542825 is a wasteful number, since it uses less digits than its factorization.

25542825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454 (or 4449 counting only the distinct ones).

The product of its digits is 32000, while the sum is 33.

The square root of 25542825 is about 5053.9909972219. The cubic root of 25542825 is about 294.5029454058.

The spelling of 25542825 in words is "twenty-five million, five hundred forty-two thousand, eight hundred twenty-five".