22451230530 has 24 divisors (see below), whose sum is σ = 58373199612. Its totient is φ = 5986994784.

The previous prime is 22451230457. The next prime is 22451230537. The reversal of 22451230530 is 3503215422.

It is a happy number.

22451230530 is a `hidden beast` number, since 2 + 2 + 4 + 5 + 123 + 0 + 530 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18162683361 + 4288547169 = 134769^2 + 65487^2 .

It is a super-2 number, since 2×22451230530² (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 = 22451230494 and 22451230503.

It is not an unprimeable number, because it can be changed into a prime (22451230537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124728969 + ... + 124729148.

Almost surely, 2^22451230530 is an apocalyptic number.

22451230530 is an abundant number, since it is smaller than the sum of its proper divisors (35921969082).

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

22451230530 is a wasteful number, since it uses less digits than its factorization.

22451230530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249458130 (or 249458127 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 22451230530 its reverse (3503215422), we get a palindrome (25954445952).

The spelling of 22451230530 in words is "twenty-two billion, four hundred fifty-one million, two hundred thirty thousand, five hundred thirty".