25013500 has 48 divisors (see below), whose sum is σ = 57526560. Its totient is φ = 9475200.

The previous prime is 25013449. The next prime is 25013543. The reversal of 25013500 is 531052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8184 + ... + 10816.

It is an arithmetic number, because the mean of its divisors is an integer number (1198470).

Almost surely, 2^25013500 is an apocalyptic number.

25013500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25013500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28763280).

25013500 is an abundant number, since it is smaller than the sum of its proper divisors (32513060).

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

25013500 is a wasteful number, since it uses less digits than its factorization.

25013500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671 (or 2659 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 25013500 is about 5001.3498177992. The cubic root of 25013500 is about 292.4543966696.

Adding to 25013500 its reverse (531052), we get a palindrome (25544552).

It can be divided in two parts, 250 and 13500, that multiplied together give a cube (3375000 = 150³).

The spelling of 25013500 in words is "twenty-five million, thirteen thousand, five hundred".