22511531047 has 2 divisors, whose sum is σ = 22511531048. Its totient is φ = 22511531046.

The previous prime is 22511531033. The next prime is 22511531069. The reversal of 22511531047 is 74013511522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22511531047 - 2¹⁵ = 22511498279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22511531027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11255765523 + 11255765524.

It is an arithmetic number, because the mean of its divisors is an integer number (11255765524).

Almost surely, 2^22511531047 is an apocalyptic number.

22511531047 is a deficient number, since it is larger than the sum of its proper divisors (1).

22511531047 is an equidigital number, since it uses as much as digits as its factorization.

22511531047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 22511531047 in words is "twenty-two billion, five hundred eleven million, five hundred thirty-one thousand, forty-seven".