25147125 has 32 divisors (see below), whose sum is σ = 46500480. Its totient is φ = 13410000.

The previous prime is 25147117. The next prime is 25147139. The reversal of 25147125 is 52174152.

It is not a de Polignac number, because 25147125 - 2³ = 25147117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351 + ... + 7100.

It is an arithmetic number, because the mean of its divisors is an integer number (1453140).

Almost surely, 2^25147125 is an apocalyptic number.

25147125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25147125 is a deficient number, since it is larger than the sum of its proper divisors (21353355).

25147125 is an equidigital number, since it uses as much as digits as its factorization.

25147125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475 (or 7459 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 25147125 is about 5014.6909176937. The cubic root of 25147125 is about 292.9742470969.

The spelling of 25147125 in words is "twenty-five million, one hundred forty-seven thousand, one hundred twenty-five".