22521425046 has 8 divisors (see below), whose sum is σ = 45042850104. Its totient is φ = 7507141680.

The previous prime is 22521425041. The next prime is 22521425089. The reversal of 22521425046 is 64052412522.

It is a sphenic number, since it is the product of 3 distinct primes.

22521425046 is an admirable number.

It is a super-2 number, since 2×22521425046² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22521424998 and 22521425016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22521425041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1876785415 + ... + 1876785426.

It is an arithmetic number, because the mean of its divisors is an integer number (5630356263).

Almost surely, 2^22521425046 is an apocalyptic number.

22521425046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22521425046 is a wasteful number, since it uses less digits than its factorization.

22521425046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753570846.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 22521425046 its reverse (64052412522), we get a palindrome (86573837568).

The spelling of 22521425046 in words is "twenty-two billion, five hundred twenty-one million, four hundred twenty-five thousand, forty-six".