25135287 has 8 divisors (see below), whose sum is σ = 33973104. Its totient is φ = 16527168.

The previous prime is 25135283. The next prime is 25135301. The reversal of 25135287 is 78253152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25135287 - 2² = 25135283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25135283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57168 + ... + 57605.

It is an arithmetic number, because the mean of its divisors is an integer number (4246638).

Almost surely, 2^25135287 is an apocalyptic number.

25135287 is a deficient number, since it is larger than the sum of its proper divisors (8837817).

25135287 is a wasteful number, since it uses less digits than its factorization.

25135287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114849.

The product of its digits is 16800, while the sum is 33.

The square root of 25135287 is about 5013.5104467828. The cubic root of 25135287 is about 292.9282673742.

The spelling of 25135287 in words is "twenty-five million, one hundred thirty-five thousand, two hundred eighty-seven".