25140285 has 48 divisors (see below), whose sum is σ = 45287424. Its totient is φ = 12894336.

The previous prime is 25140281. The next prime is 25140289. The reversal of 25140285 is 58204152.

It is a happy number.

25140285 is a `hidden beast` number, since 251 + 402 + 8 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (25140281) and next prime (25140289).

It is not a de Polignac number, because 25140285 - 2² = 25140281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25140281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197892 + ... + 198018.

It is an arithmetic number, because the mean of its divisors is an integer number (943488).

Almost surely, 2^25140285 is an apocalyptic number.

It is an amenable number.

25140285 is a deficient number, since it is larger than the sum of its proper divisors (20147139).

25140285 is a wasteful number, since it uses less digits than its factorization.

25140285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 25140285 is about 5014.0088751417. The cubic root of 25140285 is about 292.9476817596.

It can be divided in two parts, 25140 and 285, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 25140285 in words is "twenty-five million, one hundred forty thousand, two hundred eighty-five".