25152500 has 30 divisors (see below), whose sum is σ = 55008954. Its totient is φ = 10060000.

The previous prime is 25152493. The next prime is 25152511. The reversal of 25152500 is 525152.

It can be written as a sum of positive squares in 5 ways, for example, as 8976016 + 16176484 = 2996^2 + 4022^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2531 + ... + 7530.

Almost surely, 2^25152500 is an apocalyptic number.

25152500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25152500 is an abundant number, since it is smaller than the sum of its proper divisors (29856454).

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

25152500 is a wasteful number, since it uses less digits than its factorization.

25152500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10085 (or 10068 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 25152500 is about 5015.2268144123. The cubic root of 25152500 is about 292.9951192561.

25152500 divided by its product of nonzero digits (500) gives a palindrome (50305).

Adding to 25152500 its reverse (525152), we get a palindrome (25677652).

It can be divided in two parts, 25152 and 500, that added together give a palindrome (25652).

The spelling of 25152500 in words is "twenty-five million, one hundred fifty-two thousand, five hundred".