25190928 has 120 divisors (see below), whose sum is σ = 81992768. Its totient is φ = 7070976.

The previous prime is 25190917. The next prime is 25190947. The reversal of 25190928 is 82909152.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 25190892 and 25190901.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67350 + ... + 67722.

Almost surely, 2^25190928 is an apocalyptic number.

25190928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25190928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40996384).

25190928 is an abundant number, since it is smaller than the sum of its proper divisors (56801840).

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

25190928 is a wasteful number, since it uses less digits than its factorization.

25190928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 25190928 is about 5019.0564850378. The cubic root of 25190928 is about 293.1442560200.

The spelling of 25190928 in words is "twenty-five million, one hundred ninety thousand, nine hundred twenty-eight".