25516130 has 16 divisors (see below), whose sum is σ = 46009080. Its totient is φ = 10188672.

The previous prime is 25516123. The next prime is 25516147. The reversal of 25516130 is 3161552.

It can be written as a sum of positive squares in 4 ways, for example, as 25391521 + 124609 = 5039^2 + 353^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25516096 and 25516105.

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, 4886 + ... + 8654.

Almost surely, 2^25516130 is an apocalyptic number.

25516130 is a deficient number, since it is larger than the sum of its proper divisors (20492950).

25516130 is a wasteful number, since it uses less digits than its factorization.

25516130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 25516130 is about 5051.3493246854. The cubic root of 25516130 is about 294.4003138904.

Adding to 25516130 its reverse (3161552), we get a palindrome (28677682).

The spelling of 25516130 in words is "twenty-five million, five hundred sixteen thousand, one hundred thirty".