25925530 has 32 divisors (see below), whose sum is σ = 49124880. Its totient is φ = 9838080.

The previous prime is 25925461. The next prime is 25925563. The reversal of 25925530 is 3552952.

It can be written as a sum of positive squares in 8 ways, for example, as 5774409 + 20151121 = 2403^2 + 4489^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25925492 and 25925501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14316 + ... + 16024.

Almost surely, 2^25925530 is an apocalyptic number.

25925530 is a deficient number, since it is larger than the sum of its proper divisors (23199350).

25925530 is a wasteful number, since it uses less digits than its factorization.

25925530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 25925530 is about 5091.7118928706. The cubic root of 25925530 is about 295.9664939551.

The spelling of 25925530 in words is "twenty-five million, nine hundred twenty-five thousand, five hundred thirty".