25097952 has 48 divisors (see below), whose sum is σ = 71874432. Its totient is φ = 7605120.

The previous prime is 25097923. The next prime is 25097959. The reversal of 25097952 is 25979052.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25097952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25097959) 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, 10828 + ... + 12939.

It is an arithmetic number, because the mean of its divisors is an integer number (1497384).

Almost surely, 2^25097952 is an apocalyptic number.

25097952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25097952 is an abundant number, since it is smaller than the sum of its proper divisors (46776480).

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

25097952 is a wasteful number, since it uses less digits than its factorization.

25097952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23791 (or 23783 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 25097952 is about 5009.7856241560. The cubic root of 25097952 is about 292.7831606667.

The spelling of 25097952 in words is "twenty-five million, ninety-seven thousand, nine hundred fifty-two".