25722052026 has 32 divisors (see below), whose sum is σ = 56524608000. Its totient is φ = 7738482480.

The previous prime is 25722051973. The next prime is 25722052039. The reversal of 25722052026 is 62025022752.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1392726 + ... + 1411073.

It is an arithmetic number, because the mean of its divisors is an integer number (1766394000).

Almost surely, 2^25722052026 is an apocalyptic number.

25722052026 is an abundant number, since it is smaller than the sum of its proper divisors (30802555974).

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

25722052026 is a wasteful number, since it uses less digits than its factorization.

25722052026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803954.

The product of its (nonzero) digits is 33600, while the sum is 33.

Adding to 25722052026 its reverse (62025022752), we get a palindrome (87747074778).

The spelling of 25722052026 in words is "twenty-five billion, seven hundred twenty-two million, fifty-two thousand, twenty-six".