25800766090 has 32 divisors (see below), whose sum is σ = 51741275904. Its totient is φ = 9182475840.

The previous prime is 25800766067. The next prime is 25800766093. The reversal of 25800766090 is 9066700852.

It is not an unprimeable number, because it can be changed into a prime (25800766093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2490069 + ... + 2500408.

It is an arithmetic number, because the mean of its divisors is an integer number (1616914872).

Almost surely, 2^25800766090 is an apocalyptic number.

25800766090 is an abundant number, since it is smaller than the sum of its proper divisors (25940509814).

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

25800766090 is a wasteful number, since it uses less digits than its factorization.

25800766090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4990542.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 25800766090 in words is "twenty-five billion, eight hundred million, seven hundred sixty-six thousand, ninety".