25260530 has 16 divisors (see below), whose sum is σ = 45650520. Its totient is φ = 10063872.

The previous prime is 25260523. The next prime is 25260539. The reversal of 25260530 is 3506252.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24970009 + 290521 = 4997^2 + 539^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25260496 and 25260505.

It is not an unprimeable number, because it can be changed into a prime (25260539) 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, 2345 + ... + 7484.

Almost surely, 2^25260530 is an apocalyptic number.

25260530 is a deficient number, since it is larger than the sum of its proper divisors (20389990).

25260530 is a wasteful number, since it uses less digits than its factorization.

25260530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10093.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 25260530 is about 5025.9854755063. The cubic root of 25260530 is about 293.4139915360.

Adding to 25260530 its reverse (3506252), we get a palindrome (28766782).

The spelling of 25260530 in words is "twenty-five million, two hundred sixty thousand, five hundred thirty".