53278165615057 has 2 divisors, whose sum is σ = 53278165615058. Its totient is φ = 53278165615056.

The previous prime is 53278165614953. The next prime is 53278165615063. The reversal of 53278165615057 is 75051656187235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50496955666641 + 2781209948416 = 7106121^2 + 1667696^2 .

It is a cyclic number.

It is not a de Polignac number, because 53278165615057 - 2¹¹ = 53278165613009 is a prime.

It is a super-2 number, since 2×53278165615057² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53278165614986 and 53278165615004.

It is not a weakly prime, because it can be changed into another prime (53278165615067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26639082807528 + 26639082807529.

It is an arithmetic number, because the mean of its divisors is an integer number (26639082807529).

Almost surely, 2^{53278165615057} is an apocalyptic number.

It is an amenable number.

53278165615057 is a deficient number, since it is larger than the sum of its proper divisors (1).

53278165615057 is an equidigital number, since it uses as much as digits as its factorization.

53278165615057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920000, while the sum is 61.

The spelling of 53278165615057 in words is "fifty-three trillion, two hundred seventy-eight billion, one hundred sixty-five million, six hundred fifteen thousand, fifty-seven".