20525112037 has 2 divisors, whose sum is σ = 20525112038. Its totient is φ = 20525112036.

The previous prime is 20525112001. The next prime is 20525112043. The reversal of 20525112037 is 73021152502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11055681316 + 9469430721 = 105146^2 + 97311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20525112037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20525111996 and 20525112014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20595112037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10262556018 + 10262556019.

It is an arithmetic number, because the mean of its divisors is an integer number (10262556019).

Almost surely, 2^20525112037 is an apocalyptic number.

It is an amenable number.

20525112037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20525112037 is an equidigital number, since it uses as much as digits as its factorization.

20525112037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

Adding to 20525112037 its reverse (73021152502), we get a palindrome (93546264539).

The spelling of 20525112037 in words is "twenty billion, five hundred twenty-five million, one hundred twelve thousand, thirty-seven".