25101925 has 6 divisors (see below), whose sum is σ = 31126418. Its totient is φ = 20081520.

The previous prime is 25101883. The next prime is 25101929. The reversal of 25101925 is 52910152.

It can be written as a sum of positive squares in 3 ways, for example, as 191844 + 24910081 = 438^2 + 4991^2 .

It is not a de Polignac number, because 25101925 - 2²³ = 16713317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 1004077 = 25101925 / (2 + 5 + 1 + 0 + 1 + 9 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25101925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25101929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502014 + ... + 502063.

Almost surely, 2^25101925 is an apocalyptic number.

25101925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25101925 is a deficient number, since it is larger than the sum of its proper divisors (6024493).

25101925 is a wasteful number, since it uses less digits than its factorization.

25101925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004087 (or 1004082 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 25101925 is about 5010.1821324179. The cubic root of 25101925 is about 292.7986090205.

The spelling of 25101925 in words is "twenty-five million, one hundred one thousand, nine hundred twenty-five".