53527855872397 has 2 divisors, whose sum is σ = 53527855872398. Its totient is φ = 53527855872396.

The previous prime is 53527855872383. The next prime is 53527855872577. The reversal of 53527855872397 is 79327855872535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53410649611081 + 117206261316 = 7308259^2 + 342354^2 .

It is a cyclic number.

It is not a de Polignac number, because 53527855872397 - 2³¹ = 53525708388749 is a prime.

It is a super-2 number, since 2×53527855872397² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53527855872307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26763927936198 + 26763927936199.

It is an arithmetic number, because the mean of its divisors is an integer number (26763927936199).

Almost surely, 2^{53527855872397} is an apocalyptic number.

It is an amenable number.

53527855872397 is a deficient number, since it is larger than the sum of its proper divisors (1).

53527855872397 is an equidigital number, since it uses as much as digits as its factorization.

53527855872397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4445280000, while the sum is 76.

The spelling of 53527855872397 in words is "fifty-three trillion, five hundred twenty-seven billion, eight hundred fifty-five million, eight hundred seventy-two thousand, three hundred ninety-seven".