501157025137 has 2 divisors, whose sum is σ = 501157025138. Its totient is φ = 501157025136.

The previous prime is 501157025107. The next prime is 501157025219. The reversal of 501157025137 is 731520751105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320088903696 + 181068121441 = 565764^2 + 425521^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501157025137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 501157025096 and 501157025105.

It is not a weakly prime, because it can be changed into another prime (501157025107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250578512568 + 250578512569.

It is an arithmetic number, because the mean of its divisors is an integer number (250578512569).

Almost surely, 2^501157025137 is an apocalyptic number.

It is an amenable number.

501157025137 is a deficient number, since it is larger than the sum of its proper divisors (1).

501157025137 is an equidigital number, since it uses as much as digits as its factorization.

501157025137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36750, while the sum is 37.

The spelling of 501157025137 in words is "five hundred one billion, one hundred fifty-seven million, twenty-five thousand, one hundred thirty-seven".