11537722501 has 2 divisors, whose sum is σ = 11537722502. Its totient is φ = 11537722500.

The previous prime is 11537722487. The next prime is 11537722523. The reversal of 11537722501 is 10522773511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11409444225 + 128278276 = 106815^2 + 11326^2 .

It is a cyclic number.

It is not a de Polignac number, because 11537722501 - 2⁷ = 11537722373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11537722531) 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, 5768861250 + 5768861251.

It is an arithmetic number, because the mean of its divisors is an integer number (5768861251).

Almost surely, 2^11537722501 is an apocalyptic number.

It is an amenable number.

11537722501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11537722501 is an equidigital number, since it uses as much as digits as its factorization.

11537722501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14700, while the sum is 34.

The spelling of 11537722501 in words is "eleven billion, five hundred thirty-seven million, seven hundred twenty-two thousand, five hundred one".