23505527137 has 2 divisors, whose sum is σ = 23505527138. Its totient is φ = 23505527136.

The previous prime is 23505527131. The next prime is 23505527159. The reversal of 23505527137 is 73172550532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14525311441 + 8980215696 = 120521^2 + 94764^2 .

It is a cyclic number.

It is not a de Polignac number, because 23505527137 - 2¹¹ = 23505525089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23505527137.

It is not a weakly prime, because it can be changed into another prime (23505527131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11752763568 + 11752763569.

It is an arithmetic number, because the mean of its divisors is an integer number (11752763569).

Almost surely, 2^23505527137 is an apocalyptic number.

It is an amenable number.

23505527137 is a deficient number, since it is larger than the sum of its proper divisors (1).

23505527137 is an equidigital number, since it uses as much as digits as its factorization.

23505527137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 220500, while the sum is 40.

The spelling of 23505527137 in words is "twenty-three billion, five hundred five million, five hundred twenty-seven thousand, one hundred thirty-seven".