25820233626 has 16 divisors (see below), whose sum is σ = 56335055328. Its totient is φ = 7824313200.

The previous prime is 25820233603. The next prime is 25820233643. The reversal of 25820233626 is 62633202852.

It is a super-2 number, since 2×25820233626² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195607765 + ... + 195607896.

It is an arithmetic number, because the mean of its divisors is an integer number (3520940958).

Almost surely, 2^25820233626 is an apocalyptic number.

25820233626 is an abundant number, since it is smaller than the sum of its proper divisors (30514821702).

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

25820233626 is a wasteful number, since it uses less digits than its factorization.

25820233626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391215677.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 25820233626 in words is "twenty-five billion, eight hundred twenty million, two hundred thirty-three thousand, six hundred twenty-six".