25775221062 has 16 divisors (see below), whose sum is σ = 52023383280. Its totient is φ = 8512916832.

The previous prime is 25775221061. The next prime is 25775221067. The reversal of 25775221062 is 26012257752.

It is a self number, because there is not a number n which added to its sum of digits gives 25775221062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25775221061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19705173 + ... + 19706480.

It is an arithmetic number, because the mean of its divisors is an integer number (3251461455).

Almost surely, 2^25775221062 is an apocalyptic number.

25775221062 is an abundant number, since it is smaller than the sum of its proper divisors (26248162218).

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

25775221062 is a wasteful number, since it uses less digits than its factorization.

25775221062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39411767.

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 25775221062 in words is "twenty-five billion, seven hundred seventy-five million, two hundred twenty-one thousand, sixty-two".