25612327290 has 32 divisors (see below), whose sum is σ = 67057730496. Its totient is φ = 6209048960.

The previous prime is 25612327289. The next prime is 25612327291. The reversal of 25612327290 is 9272321652.

It is an interprime number because it is at equal distance from previous prime (25612327289) and next prime (25612327291).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (25612327291) 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, 38806227 + ... + 38806886.

It is an arithmetic number, because the mean of its divisors is an integer number (2095554078).

Almost surely, 2^25612327290 is an apocalyptic number.

25612327290 is an abundant number, since it is smaller than the sum of its proper divisors (41445403206).

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

25612327290 is a wasteful number, since it uses less digits than its factorization.

25612327290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77613134.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 25612327290 in words is "twenty-five billion, six hundred twelve million, three hundred twenty-seven thousand, two hundred ninety".