25372530 has 48 divisors (see below), whose sum is σ = 66441024. Its totient is φ = 6717600.

The previous prime is 25372499. The next prime is 25372547. The reversal of 25372530 is 3527352.

It is a junction number, because it is equal to n+sod(n) for n = 25372494 and 25372503.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12657 + ... + 14523.

It is an arithmetic number, because the mean of its divisors is an integer number (1384188).

Almost surely, 2^25372530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25372530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33220512).

25372530 is an abundant number, since it is smaller than the sum of its proper divisors (41068494).

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

25372530 is a wasteful number, since it uses less digits than its factorization.

25372530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031 (or 2028 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 25372530 is about 5037.1152458525. The cubic root of 25372530 is about 293.8469979958.

Adding to 25372530 its reverse (3527352), we get a palindrome (28899882).

The spelling of 25372530 in words is "twenty-five million, three hundred seventy-two thousand, five hundred thirty".