25287955 has 32 divisors (see below), whose sum is σ = 39836160. Its totient is φ = 14929920.

The previous prime is 25287953. The next prime is 25287967. The reversal of 25287955 is 55978252.

It is not a de Polignac number, because 25287955 - 2¹ = 25287953 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (25287953) 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, 5587 + ... + 9043.

It is an arithmetic number, because the mean of its divisors is an integer number (1244880).

Almost surely, 2^25287955 is an apocalyptic number.

25287955 is a deficient number, since it is larger than the sum of its proper divisors (14548205).

25287955 is a wasteful number, since it uses less digits than its factorization.

25287955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499.

The product of its digits is 252000, while the sum is 43.

The square root of 25287955 is about 5028.7130560413. The cubic root of 25287955 is about 293.5201382709.

The spelling of 25287955 in words is "twenty-five million, two hundred eighty-seven thousand, nine hundred fifty-five".