22552315081 has 2 divisors, whose sum is σ = 22552315082. Its totient is φ = 22552315080.

The previous prime is 22552315033. The next prime is 22552315099. The reversal of 22552315081 is 18051325522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20933459856 + 1618855225 = 144684^2 + 40235^2 .

It is a cyclic number.

It is not a de Polignac number, because 22552315081 - 2⁹ = 22552314569 is a prime.

It is a super-2 number, since 2×22552315081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22552315381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276157540 + 11276157541.

It is an arithmetic number, because the mean of its divisors is an integer number (11276157541).

Almost surely, 2^22552315081 is an apocalyptic number.

It is an amenable number.

22552315081 is a deficient number, since it is larger than the sum of its proper divisors (1).

22552315081 is an equidigital number, since it uses as much as digits as its factorization.

22552315081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 22552315081 in words is "twenty-two billion, five hundred fifty-two million, three hundred fifteen thousand, eighty-one".