25922500 has 30 divisors (see below), whose sum is σ = 56692790. Its totient is φ = 10368000.

The previous prime is 25922497. The next prime is 25922503. The reversal of 25922500 is 522952.

It is an interprime number because it is at equal distance from previous prime (25922497) and next prime (25922503).

It can be written as a sum of positive squares in 5 ways, for example, as 17172736 + 8749764 = 4144^2 + 2958^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (25922503) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2685 + ... + 7684.

Almost surely, 2^25922500 is an apocalyptic number.

25922500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25922500 is an abundant number, since it is smaller than the sum of its proper divisors (30770290).

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

25922500 is a wasteful number, since it uses less digits than its factorization.

25922500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10393 (or 10376 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 25922500 is about 5091.4143418111. The cubic root of 25922500 is about 295.9549633208.

The spelling of 25922500 in words is "twenty-five million, nine hundred twenty-two thousand, five hundred".