25867390 has 24 divisors (see below), whose sum is σ = 47613672. Its totient is φ = 10118160.

The previous prime is 25867367. The next prime is 25867397. The reversal of 25867390 is 9376852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25867397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21505 + ... + 22675.

It is an arithmetic number, because the mean of its divisors is an integer number (1983903).

Almost surely, 2^25867390 is an apocalyptic number.

25867390 is a deficient number, since it is larger than the sum of its proper divisors (21746282).

25867390 is a wasteful number, since it uses less digits than its factorization.

25867390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 25867390 is about 5085.9994101455. Note that the first 3 decimals coincide. The cubic root of 25867390 is about 295.7450858033.

The spelling of 25867390 in words is "twenty-five million, eight hundred sixty-seven thousand, three hundred ninety".