25790590 has 64 divisors (see below), whose sum is σ = 56318976. Its totient is φ = 8312832.

The previous prime is 25790587. The next prime is 25790593. The reversal of 25790590 is 9509752.

It is an interprime number because it is at equal distance from previous prime (25790587) and next prime (25790593).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25790593) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133534 + ... + 133726.

It is an arithmetic number, because the mean of its divisors is an integer number (879984).

Almost surely, 2^25790590 is an apocalyptic number.

25790590 is an abundant number, since it is smaller than the sum of its proper divisors (30528386).

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

25790590 is a wasteful number, since it uses less digits than its factorization.

25790590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 25790590 is about 5078.4436592326. The cubic root of 25790590 is about 295.4521076794.

The spelling of 25790590 in words is "twenty-five million, seven hundred ninety thousand, five hundred ninety".