25284375 has 72 divisors (see below), whose sum is σ = 48746880. Its totient is φ = 12600000.

The previous prime is 25284367. The next prime is 25284401. The reversal of 25284375 is 57348252.

25284375 is a `hidden beast` number, since 2 + 5 + 284 + 375 = 666.

It is not a de Polignac number, because 25284375 - 2³ = 25284367 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 815610 + ... + 815640.

It is an arithmetic number, because the mean of its divisors is an integer number (677040).

Almost surely, 2^25284375 is an apocalyptic number.

25284375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25284375 is a deficient number, since it is larger than the sum of its proper divisors (23462505).

25284375 is an equidigital number, since it uses as much as digits as its factorization.

25284375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 68 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 25284375 is about 5028.3570875585. The cubic root of 25284375 is about 293.5062864630.

It can be divided in two parts, 2528 and 4375, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 25284375 in words is "twenty-five million, two hundred eighty-four thousand, three hundred seventy-five".