25045890 has 32 divisors (see below), whose sum is σ = 60578496. Its totient is φ = 6626880.

The previous prime is 25045883. The next prime is 25045897. The reversal of 25045890 is 9854052.

It is an interprime number because it is at equal distance from previous prime (25045883) and next prime (25045897).

It is not an unprimeable number, because it can be changed into a prime (25045897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744 + ... + 7116.

It is an arithmetic number, because the mean of its divisors is an integer number (1893078).

Almost surely, 2^25045890 is an apocalyptic number.

25045890 is an abundant number, since it is smaller than the sum of its proper divisors (35532606).

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

25045890 is a wasteful number, since it uses less digits than its factorization.

25045890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 25045890 is about 5004.5868960385. The cubic root of 25045890 is about 292.5805753618.

The spelling of 25045890 in words is "twenty-five million, forty-five thousand, eight hundred ninety".