25192722852 has 36 divisors (see below), whose sum is σ = 69470842896. Its totient is φ = 7634158320.

The previous prime is 25192722847. The next prime is 25192722853. The reversal of 25192722852 is 25822729152.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 25192722798 and 25192722807.

It is not an unprimeable number, because it can be changed into a prime (25192722853) 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 11 ways as a sum of consecutive naturals, for example, 31808598 + ... + 31809389.

It is an arithmetic number, because the mean of its divisors is an integer number (1929745636).

Almost surely, 2^25192722852 is an apocalyptic number.

25192722852 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25192722852 is an abundant number, since it is smaller than the sum of its proper divisors (44278120044).

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

25192722852 is a wasteful number, since it uses less digits than its factorization.

25192722852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63618008 (or 63618003 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The spelling of 25192722852 in words is "twenty-five billion, one hundred ninety-two million, seven hundred twenty-two thousand, eight hundred fifty-two".