25569130 has 8 divisors (see below), whose sum is σ = 46024452. Its totient is φ = 10227648.

The previous prime is 25569127. The next prime is 25569149. The reversal of 25569130 is 3196552.

It can be written as a sum of positive squares in 2 ways, for example, as 25492401 + 76729 = 5049^2 + 277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25569092 and 25569101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278447 + ... + 1278466.

Almost surely, 2^25569130 is an apocalyptic number.

25569130 is a deficient number, since it is larger than the sum of its proper divisors (20455322).

25569130 is a wasteful number, since it uses less digits than its factorization.

25569130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556920.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 25569130 is about 5056.5927263326. The cubic root of 25569130 is about 294.6040076042.

The spelling of 25569130 in words is "twenty-five million, five hundred sixty-nine thousand, one hundred thirty".