25516790 has 32 divisors (see below), whose sum is σ = 49696416. Its totient is φ = 9377280.

The previous prime is 25516787. The next prime is 25516793. The reversal of 25516790 is 9761552.

It is an interprime number because it is at equal distance from previous prime (25516787) and next prime (25516793).

It is a super-2 number, since 2×25516790² = 1302213143808200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25516790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25516793) 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, 42734 + ... + 43326.

It is an arithmetic number, because the mean of its divisors is an integer number (1553013).

Almost surely, 2^25516790 is an apocalyptic number.

25516790 is a deficient number, since it is larger than the sum of its proper divisors (24179626).

25516790 is a wasteful number, since it uses less digits than its factorization.

25516790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 25516790 is about 5051.4146533422. The cubic root of 25516790 is about 294.4028521871.

The spelling of 25516790 in words is "twenty-five million, five hundred sixteen thousand, seven hundred ninety".