25513532 has 48 divisors (see below), whose sum is σ = 53851392. Its totient is φ = 10433280.

The previous prime is 25513529. The next prime is 25513559. The reversal of 25513532 is 23531552.

It is a congruent number.

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, 16463 + ... + 17945.

It is an arithmetic number, because the mean of its divisors is an integer number (1121904).

Almost surely, 2^25513532 is an apocalyptic number.

25513532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25513532 is an abundant number, since it is smaller than the sum of its proper divisors (28337860).

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

25513532 is a wasteful number, since it uses less digits than its factorization.

25513532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538 (or 1536 counting only the distinct ones).

The product of its digits is 4500, while the sum is 26.

The square root of 25513532 is about 5051.0921591276. The cubic root of 25513532 is about 294.3903218059.

The spelling of 25513532 in words is "twenty-five million, five hundred thirteen thousand, five hundred thirty-two".