22253377481 has 4 divisors (see below), whose sum is σ = 22254373764. Its totient is φ = 22252381200.

The previous prime is 22253377477. The next prime is 22253377483. The reversal of 22253377481 is 18477335222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21678145225 + 575232256 = 147235^2 + 23984^2 .

It is a cyclic number.

It is not a de Polignac number, because 22253377481 - 2² = 22253377477 is a prime.

It is a super-2 number, since 2×22253377481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22253377483) 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, 463850 + ... + 509571.

It is an arithmetic number, because the mean of its divisors is an integer number (5563593441).

Almost surely, 2^22253377481 is an apocalyptic number.

It is an amenable number.

22253377481 is a deficient number, since it is larger than the sum of its proper divisors (996283).

22253377481 is an equidigital number, since it uses as much as digits as its factorization.

22253377481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996282.

The product of its digits is 564480, while the sum is 44.

The spelling of 22253377481 in words is "twenty-two billion, two hundred fifty-three million, three hundred seventy-seven thousand, four hundred eighty-one".