25190625 has 24 divisors (see below), whose sum is σ = 41997312. Its totient is φ = 13430000.

The previous prime is 25190603. The next prime is 25190629. The reversal of 25190625 is 52609152.

It is a happy number.

It is not a de Polignac number, because 25190625 - 2¹⁷ = 25059553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25190592 and 25190601.

It is not an unprimeable number, because it can be changed into a prime (25190629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8032 + ... + 10718.

It is an arithmetic number, because the mean of its divisors is an integer number (1749888).

Almost surely, 2^25190625 is an apocalyptic number.

25190625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25190625 is a deficient number, since it is larger than the sum of its proper divisors (16806687).

25190625 is an frugal number, since it uses more digits than its factorization.

25190625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 25190625 is about 5019.0262999909. The cubic root of 25190625 is about 293.1430806886.

Adding to 25190625 its reverse (52609152), we get a palindrome (77799777).

The spelling of 25190625 in words is "twenty-five million, one hundred ninety thousand, six hundred twenty-five".