20137206527 has 2 divisors, whose sum is σ = 20137206528. Its totient is φ = 20137206526.

The previous prime is 20137206521. The next prime is 20137206553. The reversal of 20137206527 is 72560273102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20137206527 - 2²⁴ = 20120429311 is a prime.

It is a super-2 number, since 2×20137206527² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20137206521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10068603263 + 10068603264.

It is an arithmetic number, because the mean of its divisors is an integer number (10068603264).

Almost surely, 2^20137206527 is an apocalyptic number.

20137206527 is a deficient number, since it is larger than the sum of its proper divisors (1).

20137206527 is an equidigital number, since it uses as much as digits as its factorization.

20137206527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 35.

Adding to 20137206527 its reverse (72560273102), we get a palindrome (92697479629).

The spelling of 20137206527 in words is "twenty billion, one hundred thirty-seven million, two hundred six thousand, five hundred twenty-seven".