25378832 has 40 divisors (see below), whose sum is σ = 53448960. Its totient is φ = 11629440.

The previous prime is 25378831. The next prime is 25378849. The reversal of 25378832 is 23887352.

It is a super-2 number, since 2×25378832² = 1288170227368448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (25378831) 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, 8078 + ... + 10770.

It is an arithmetic number, because the mean of its divisors is an integer number (1336224).

Almost surely, 2^25378832 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 25378832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26724480).

25378832 is an abundant number, since it is smaller than the sum of its proper divisors (28070128).

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

25378832 is a wasteful number, since it uses less digits than its factorization.

25378832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2745 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 25378832 is about 5037.7407634772. The cubic root of 25378832 is about 293.8713244424.

The spelling of 25378832 in words is "twenty-five million, three hundred seventy-eight thousand, eight hundred thirty-two".