25103130 has 64 divisors (see below), whose sum is σ = 65415168. Its totient is φ = 6128640.

The previous prime is 25103129. The next prime is 25103159. The reversal of 25103130 is 3130152.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74322 + ... + 74658.

It is an arithmetic number, because the mean of its divisors is an integer number (1022112).

Almost surely, 2^25103130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25103130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32707584).

25103130 is an abundant number, since it is smaller than the sum of its proper divisors (40312038).

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

25103130 is a wasteful number, since it uses less digits than its factorization.

25103130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 25103130 is about 5010.3023860841. The cubic root of 25103130 is about 292.8032941416.

Adding to 25103130 its reverse (3130152), we get a palindrome (28233282).

The spelling of 25103130 in words is "twenty-five million, one hundred three thousand, one hundred thirty".