25860090 has 32 divisors (see below), whose sum is σ = 62257536. Its totient is φ = 6874560.

The previous prime is 25860049. The next prime is 25860091. The reversal of 25860090 is 9006852.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (25860091) 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, 10035 + ... + 12345.

It is an arithmetic number, because the mean of its divisors is an integer number (1945548).

Almost surely, 2^25860090 is an apocalyptic number.

25860090 is an abundant number, since it is smaller than the sum of its proper divisors (36397446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25860090 is a wasteful number, since it uses less digits than its factorization.

25860090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 25860090 is about 5085.2817031114. The cubic root of 25860090 is about 295.7172625833.

The spelling of 25860090 in words is "twenty-five million, eight hundred sixty thousand, ninety".