25253487285 has 32 divisors (see below), whose sum is σ = 43548960000. Its totient is φ = 12422412288.

The previous prime is 25253487283. The next prime is 25253487317. The reversal of 25253487285 is 58278435252.

It is not a de Polignac number, because 25253487285 - 2¹ = 25253487283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25253487283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191712 + ... + 295398.

It is an arithmetic number, because the mean of its divisors is an integer number (1360905000).

Almost surely, 2^25253487285 is an apocalyptic number.

It is an amenable number.

25253487285 is a deficient number, since it is larger than the sum of its proper divisors (18295472715).

25253487285 is a wasteful number, since it uses less digits than its factorization.

25253487285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104957.

The product of its digits is 5376000, while the sum is 51.

The spelling of 25253487285 in words is "twenty-five billion, two hundred fifty-three million, four hundred eighty-seven thousand, two hundred eighty-five".