25315790 has 16 divisors (see below), whose sum is σ = 47967120. Its totient is φ = 9593280.

The previous prime is 25315781. The next prime is 25315817. The reversal of 25315790 is 9751352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66431 + ... + 66810.

It is an arithmetic number, because the mean of its divisors is an integer number (2997945).

Almost surely, 2^25315790 is an apocalyptic number.

25315790 is a deficient number, since it is larger than the sum of its proper divisors (22651330).

25315790 is a wasteful number, since it uses less digits than its factorization.

25315790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133267.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 25315790 is about 5031.4799015797. The cubic root of 25315790 is about 293.6277934398.

The spelling of 25315790 in words is "twenty-five million, three hundred fifteen thousand, seven hundred ninety".