500038725397 has 2 divisors, whose sum is σ = 500038725398. Its totient is φ = 500038725396.

The previous prime is 500038725391. The next prime is 500038725419. The reversal of 500038725397 is 793527830005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264395469636 + 235643255761 = 514194^2 + 485431^2 .

It is a cyclic number.

It is not a de Polignac number, because 500038725397 - 2²³ = 500030336789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 500038725397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500038725391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250019362698 + 250019362699.

It is an arithmetic number, because the mean of its divisors is an integer number (250019362699).

Almost surely, 2^500038725397 is an apocalyptic number.

It is an amenable number.

500038725397 is a deficient number, since it is larger than the sum of its proper divisors (1).

500038725397 is an equidigital number, since it uses as much as digits as its factorization.

500038725397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 500038725397 in words is "five hundred billion, thirty-eight million, seven hundred twenty-five thousand, three hundred ninety-seven".