22563531042 has 48 divisors (see below), whose sum is σ = 48893167008. Its totient is φ = 6938680320.

The previous prime is 22563531017. The next prime is 22563531049. The reversal of 22563531042 is 24013536522.

It is a happy number.

It is a super-2 number, since 2×22563531042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22563530994 and 22563531012.

It is not an unprimeable number, because it can be changed into a prime (22563531049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2137317 + ... + 2147847.

It is an arithmetic number, because the mean of its divisors is an integer number (1018607646).

Almost surely, 2^22563531042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22563531042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24446583504).

22563531042 is an abundant number, since it is smaller than the sum of its proper divisors (26329635966).

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

22563531042 is a wasteful number, since it uses less digits than its factorization.

22563531042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12675 (or 12662 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 22563531042 in words is "twenty-two billion, five hundred sixty-three million, five hundred thirty-one thousand, forty-two".