22125260550 has 96 divisors (see below), whose sum is σ = 57708306432. Its totient is φ = 5598996480.

The previous prime is 22125260539. The next prime is 22125260561. The reversal of 22125260550 is 5506252122.

It is an interprime number because it is at equal distance from previous prime (22125260539) and next prime (22125260561).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 412902 + ... + 463398.

It is an arithmetic number, because the mean of its divisors is an integer number (601128192).

Almost surely, 2^22125260550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22125260550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28854153216).

22125260550 is an abundant number, since it is smaller than the sum of its proper divisors (35583045882).

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

22125260550 is a wasteful number, since it uses less digits than its factorization.

22125260550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50662 (or 50657 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 22125260550 in words is "twenty-two billion, one hundred twenty-five million, two hundred sixty thousand, five hundred fifty".