25305890 has 16 divisors (see below), whose sum is σ = 45608832. Its totient is φ = 10109424.

The previous prime is 25305883. The next prime is 25305901. The reversal of 25305890 is 9850352.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12317 + ... + 14223.

It is an arithmetic number, because the mean of its divisors is an integer number (2850552).

Almost surely, 2^25305890 is an apocalyptic number.

25305890 is a deficient number, since it is larger than the sum of its proper divisors (20302942).

25305890 is a wasteful number, since it uses less digits than its factorization.

25305890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 25305890 is about 5030.4959994020. The cubic root of 25305890 is about 293.5895130601.

The spelling of 25305890 in words is "twenty-five million, three hundred five thousand, eight hundred ninety".