25487952 has 80 divisors (see below), whose sum is σ = 77709312. Its totient is φ = 7044480.

The previous prime is 25487951. The next prime is 25487953. The reversal of 25487952 is 25978452.

It is an interprime number because it is at equal distance from previous prime (25487951) and next prime (25487953).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25487951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9193 + ... + 11639.

Almost surely, 2^25487952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25487952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38854656).

25487952 is an abundant number, since it is smaller than the sum of its proper divisors (52221360).

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

25487952 is a wasteful number, since it uses less digits than its factorization.

25487952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496 (or 2490 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 25487952 is about 5048.5593984819. The cubic root of 25487952 is about 294.2919031505.

The spelling of 25487952 in words is "twenty-five million, four hundred eighty-seven thousand, nine hundred fifty-two".