25338520 has 16 divisors (see below), whose sum is σ = 57011760. Its totient is φ = 10135392.

The previous prime is 25338503. The next prime is 25338527. The reversal of 25338520 is 2583352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25338527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316692 + ... + 316771.

It is an arithmetic number, because the mean of its divisors is an integer number (3563235).

Almost surely, 2^25338520 is an apocalyptic number.

25338520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25338520 is an abundant number, since it is smaller than the sum of its proper divisors (31673240).

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

25338520 is a wasteful number, since it uses less digits than its factorization.

25338520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633474 (or 633470 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 25338520 is about 5033.7381735645. The cubic root of 25338520 is about 293.7156458994.

The spelling of 25338520 in words is "twenty-five million, three hundred thirty-eight thousand, five hundred twenty".