25531208022 has 32 divisors (see below), whose sum is σ = 54544573152. Its totient is φ = 7938904064.

The previous prime is 25531208011. The next prime is 25531208023. The reversal of 25531208022 is 22080213552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25531208023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1096023 + ... + 1119074.

It is an arithmetic number, because the mean of its divisors is an integer number (1704517911).

Almost surely, 2^25531208022 is an apocalyptic number.

25531208022 is an abundant number, since it is smaller than the sum of its proper divisors (29013365130).

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

25531208022 is a wasteful number, since it uses less digits than its factorization.

25531208022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215232.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 25531208022 in words is "twenty-five billion, five hundred thirty-one million, two hundred eight thousand, twenty-two".