25707552 has 48 divisors (see below), whose sum is σ = 72676800. Its totient is φ = 7909632.

The previous prime is 25707547. The next prime is 25707559. The reversal of 25707552 is 25570752.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (25707559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9052 + ... + 11547.

It is an arithmetic number, because the mean of its divisors is an integer number (1514100).

Almost surely, 2^25707552 is an apocalyptic number.

It is an amenable number.

25707552 is an abundant number, since it is smaller than the sum of its proper divisors (46969248).

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

25707552 is a wasteful number, since it uses less digits than its factorization.

25707552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20625 (or 20617 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 25707552 is about 5070.2615317161. The cubic root of 25707552 is about 295.1346775654.

The spelling of 25707552 in words is "twenty-five million, seven hundred seven thousand, five hundred fifty-two".