52115503717397 has 2 divisors, whose sum is σ = 52115503717398. Its totient is φ = 52115503717396.

The previous prime is 52115503717369. The next prime is 52115503717423. The reversal of 52115503717397 is 79371730551125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39403754572081 + 12711749145316 = 6277241^2 + 3565354^2 .

It is a cyclic number.

It is not a de Polignac number, because 52115503717397 - 2²² = 52115499523093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52115503717357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26057751858698 + 26057751858699.

It is an arithmetic number, because the mean of its divisors is an integer number (26057751858699).

Almost surely, 2^{52115503717397} is an apocalyptic number.

It is an amenable number.

52115503717397 is a deficient number, since it is larger than the sum of its proper divisors (1).

52115503717397 is an equidigital number, since it uses as much as digits as its factorization.

52115503717397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6945750, while the sum is 56.

The spelling of 52115503717397 in words is "fifty-two trillion, one hundred fifteen billion, five hundred three million, seven hundred seventeen thousand, three hundred ninety-seven".