25090869660 has 24 divisors (see below), whose sum is σ = 70254435216. Its totient is φ = 6690898560.

The previous prime is 25090869637. The next prime is 25090869673. The reversal of 25090869660 is 6696809052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209090521 + ... + 209090640.

It is an arithmetic number, because the mean of its divisors is an integer number (2927268134).

Almost surely, 2^25090869660 is an apocalyptic number.

25090869660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25090869660 is an abundant number, since it is smaller than the sum of its proper divisors (45163565556).

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

25090869660 is a wasteful number, since it uses less digits than its factorization.

25090869660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418181173 (or 418181171 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 25090869660 in words is "twenty-five billion, ninety million, eight hundred sixty-nine thousand, six hundred sixty".