25012530 has 32 divisors (see below), whose sum is σ = 66700800. Its totient is φ = 6669936.

The previous prime is 25012511. The next prime is 25012543. The reversal of 25012530 is 3521052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46050 + ... + 46589.

It is an arithmetic number, because the mean of its divisors is an integer number (2084400).

Almost surely, 2^25012530 is an apocalyptic number.

25012530 is an abundant number, since it is smaller than the sum of its proper divisors (41688270).

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

25012530 is a wasteful number, since it uses less digits than its factorization.

25012530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92655 (or 92649 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 25012530 is about 5001.2528430384. The cubic root of 25012530 is about 292.4506162519.

Adding to 25012530 its reverse (3521052), we get a palindrome (28533582).

The spelling of 25012530 in words is "twenty-five million, twelve thousand, five hundred thirty".