23534554513 has 2 divisors, whose sum is σ = 23534554514. Its totient is φ = 23534554512.

The previous prime is 23534554471. The next prime is 23534554543. The reversal of 23534554513 is 31545543532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23480045824 + 54508689 = 153232^2 + 7383^2 .

It is a cyclic number.

It is not a de Polignac number, because 23534554513 - 2¹⁷ = 23534423441 is a prime.

It is a super-2 number, since 2×23534554513² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23534554543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11767277256 + 11767277257.

It is an arithmetic number, because the mean of its divisors is an integer number (11767277257).

Almost surely, 2^23534554513 is an apocalyptic number.

It is an amenable number.

23534554513 is a deficient number, since it is larger than the sum of its proper divisors (1).

23534554513 is an equidigital number, since it uses as much as digits as its factorization.

23534554513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540000, while the sum is 40.

The spelling of 23534554513 in words is "twenty-three billion, five hundred thirty-four million, five hundred fifty-four thousand, five hundred thirteen".