25038890 has 16 divisors (see below), whose sum is σ = 46624680. Its totient is φ = 9670080.

The previous prime is 25038883. The next prime is 25038913. The reversal of 25038890 is 9883052.

It can be written as a sum of positive squares in 4 ways, for example, as 17547721 + 7491169 = 4189^2 + 2737^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25038890.

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, 42881 + ... + 43460.

Almost surely, 2^25038890 is an apocalyptic number.

25038890 is a deficient number, since it is larger than the sum of its proper divisors (21585790).

25038890 is a wasteful number, since it uses less digits than its factorization.

25038890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86377.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 25038890 is about 5003.8874887431. The cubic root of 25038890 is about 292.5533153356.

The spelling of 25038890 in words is "twenty-five million, thirty-eight thousand, eight hundred ninety".