25675590 has 64 divisors (see below), whose sum is σ = 65028096. Its totient is φ = 6475392.

The previous prime is 25675589. The next prime is 25675603. The reversal of 25675590 is 9557652.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87484 + ... + 87776.

It is an arithmetic number, because the mean of its divisors is an integer number (1016064).

Almost surely, 2^25675590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25675590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32514048).

25675590 is an abundant number, since it is smaller than the sum of its proper divisors (39352506).

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

25675590 is a wasteful number, since it uses less digits than its factorization.

25675590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453.

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 25675590 is about 5067.1086430034. The cubic root of 25675590 is about 295.0123139550.

The spelling of 25675590 in words is "twenty-five million, six hundred seventy-five thousand, five hundred ninety".