25115552 has 48 divisors (see below), whose sum is σ = 61653312. Its totient is φ = 9784320.

The previous prime is 25115539. The next prime is 25115581. The reversal of 25115552 is 25551152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2633 + ... + 7560.

It is an arithmetic number, because the mean of its divisors is an integer number (1284444).

Almost surely, 2^25115552 is an apocalyptic number.

25115552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25115552 is an abundant number, since it is smaller than the sum of its proper divisors (36537760).

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

25115552 is a wasteful number, since it uses less digits than its factorization.

25115552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10221 (or 10213 counting only the distinct ones).

The product of its digits is 2500, while the sum is 26.

The square root of 25115552 is about 5011.5418785041. The cubic root of 25115552 is about 292.8515829771.

Subtracting 25115552 from its reverse (25551152), we obtain a square (435600 = 660²).

The spelling of 25115552 in words is "twenty-five million, one hundred fifteen thousand, five hundred fifty-two".