25190420 has 24 divisors (see below), whose sum is σ = 52998624. Its totient is φ = 10057376.

The previous prime is 25190393. The next prime is 25190443. The reversal of 25190420 is 2409152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15779 + ... + 17301.

It is an arithmetic number, because the mean of its divisors is an integer number (2208276).

Almost surely, 2^25190420 is an apocalyptic number.

25190420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25190420 is an abundant number, since it is smaller than the sum of its proper divisors (27808204).

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

25190420 is a wasteful number, since it uses less digits than its factorization.

25190420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359 (or 2357 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 25190420 is about 5019.0058776614. The cubic root of 25190420 is about 293.1422854921.

Adding to 25190420 its reverse (2409152), we get a palindrome (27599572).

The spelling of 25190420 in words is "twenty-five million, one hundred ninety thousand, four hundred twenty".