25813130 has 32 divisors (see below), whose sum is σ = 55413504. Its totient is φ = 8464896.

The previous prime is 25813127. The next prime is 25813133. The reversal of 25813130 is 3131852.

It is an interprime number because it is at equal distance from previous prime (25813127) and next prime (25813133).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25813096 and 25813105.

It is not an unprimeable number, because it can be changed into a prime (25813133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6407 + ... + 9626.

It is an arithmetic number, because the mean of its divisors is an integer number (1731672).

Almost surely, 2^25813130 is an apocalyptic number.

25813130 is an abundant number, since it is smaller than the sum of its proper divisors (29600374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25813130 is a wasteful number, since it uses less digits than its factorization.

25813130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16070.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 25813130 is about 5080.6623583938. The cubic root of 25813130 is about 295.5381539389.

Adding to 25813130 its reverse (3131852), we get a palindrome (28944982).

The spelling of 25813130 in words is "twenty-five million, eight hundred thirteen thousand, one hundred thirty".