22000025936 has 160 divisors (see below), whose sum is σ = 52400455680. Its totient is φ = 8745408000.

The previous prime is 22000025923. The next prime is 22000025963. The reversal of 22000025936 is 63952000022.

It is a super-2 number, since 2×22000025936² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 22000025899 and 22000025908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15203165 + ... + 15204611.

It is an arithmetic number, because the mean of its divisors is an integer number (327502848).

Almost surely, 2^22000025936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22000025936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26200227840).

22000025936 is an abundant number, since it is smaller than the sum of its proper divisors (30400429744).

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

22000025936 is a wasteful number, since it uses less digits than its factorization.

22000025936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 22000025936 its reverse (63952000022), we get a palindrome (85952025958).

The spelling of 22000025936 in words is "twenty-two billion, twenty-five thousand, nine hundred thirty-six".