25135000 has 80 divisors (see below), whose sum is σ = 64385640. Its totient is φ = 9120000.

The previous prime is 25134943. The next prime is 25135031. The reversal of 25135000 is 53152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 54772 + ... + 55228.

Almost surely, 2^25135000 is an apocalyptic number.

25135000 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 25135000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32192820).

25135000 is an abundant number, since it is smaller than the sum of its proper divisors (39250640).

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

25135000 is a wasteful number, since it uses less digits than its factorization.

25135000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 475 counting only the distinct ones).

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

The square root of 25135000 is about 5013.4818240420. The cubic root of 25135000 is about 292.9271524644.

Adding to 25135000 its reverse (53152), we get a palindrome (25188152).

It can be divided in two parts, 25 and 135000, that multiplied together give a cube (3375000 = 150³).

The spelling of 25135000 in words is "twenty-five million, one hundred thirty-five thousand".