53323243157 has 2 divisors, whose sum is σ = 53323243158. Its totient is φ = 53323243156.

The previous prime is 53323243153. The next prime is 53323243159. The reversal of 53323243157 is 75134232335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39238063396 + 14085179761 = 198086^2 + 118681^2 .

It is a cyclic number.

It is not a de Polignac number, because 53323243157 - 2² = 53323243153 is a prime.

Together with 53323243159, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53323243157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53323243153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26661621578 + 26661621579.

It is an arithmetic number, because the mean of its divisors is an integer number (26661621579).

Almost surely, 2^53323243157 is an apocalyptic number.

It is an amenable number.

53323243157 is a deficient number, since it is larger than the sum of its proper divisors (1).

53323243157 is an equidigital number, since it uses as much as digits as its factorization.

53323243157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 38.

The spelling of 53323243157 in words is "fifty-three billion, three hundred twenty-three million, two hundred forty-three thousand, one hundred fifty-seven".