25802525 has 24 divisors (see below), whose sum is σ = 36765504. Its totient is φ = 17596800.

The previous prime is 25802521. The next prime is 25802531. The reversal of 25802525 is 52520852.

It is not a de Polignac number, because 25802525 - 2² = 25802521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25802521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49265 + ... + 49785.

It is an arithmetic number, because the mean of its divisors is an integer number (1531896).

Almost surely, 2^25802525 is an apocalyptic number.

25802525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25802525 is a deficient number, since it is larger than the sum of its proper divisors (10962979).

25802525 is a wasteful number, since it uses less digits than its factorization.

25802525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 25802525 is about 5079.6185880438. The cubic root of 25802525 is about 295.4976756831.

The spelling of 25802525 in words is "twenty-five million, eight hundred two thousand, five hundred twenty-five".