25245330 has 64 divisors (see below), whose sum is σ = 66780288. Its totient is φ = 6056960.

The previous prime is 25245313. The next prime is 25245361. The reversal of 25245330 is 3354252.

It is a self number, because there is not a number n which added to its sum of digits gives 25245330.

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, 36952 + ... + 37628.

It is an arithmetic number, because the mean of its divisors is an integer number (1043442).

Almost surely, 2^25245330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25245330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33390144).

25245330 is an abundant number, since it is smaller than the sum of its proper divisors (41534958).

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

25245330 is a wasteful number, since it uses less digits than its factorization.

25245330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 25245330 is about 5024.4731067048. The cubic root of 25245330 is about 293.3551277998.

Adding to 25245330 its reverse (3354252), we get a palindrome (28599582).

The spelling of 25245330 in words is "twenty-five million, two hundred forty-five thousand, three hundred thirty".