25385087 has 16 divisors (see below), whose sum is σ = 31886400. Its totient is φ = 20081376.

The previous prime is 25385081. The next prime is 25385099. The reversal of 25385087 is 78058352.

It is not a de Polignac number, because 25385087 - 2¹⁰ = 25384063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25385087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25385081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613 + ... + 7305.

It is an arithmetic number, because the mean of its divisors is an integer number (1992900).

Almost surely, 2^25385087 is an apocalyptic number.

25385087 is a deficient number, since it is larger than the sum of its proper divisors (6501313).

25385087 is an equidigital number, since it uses as much as digits as its factorization.

25385087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5727 (or 5713 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 25385087 is about 5038.3615392308. The cubic root of 25385087 is about 293.8954654817.

The spelling of 25385087 in words is "twenty-five million, three hundred eighty-five thousand, eighty-seven".