25000890 has 16 divisors (see below), whose sum is σ = 60002208. Its totient is φ = 6666896.

The previous prime is 25000889. The next prime is 25000891. The reversal of 25000890 is 9800052.

It is an interprime number because it is at equal distance from previous prime (25000889) and next prime (25000891).

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 25000890.

It is not an unprimeable number, because it can be changed into a prime (25000891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416652 + ... + 416711.

It is an arithmetic number, because the mean of its divisors is an integer number (3750138).

Almost surely, 2^25000890 is an apocalyptic number.

25000890 is an abundant number, since it is smaller than the sum of its proper divisors (35001318).

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

25000890 is a wasteful number, since it uses less digits than its factorization.

25000890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833373.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 25000890 is about 5000.0889992079. The cubic root of 25000890 is about 292.4052436145.

The spelling of 25000890 in words is "twenty-five million, eight hundred ninety", and thus it is an aban number.