5112778665053 has 4 divisors (see below), whose sum is σ = 5113199239740. Its totient is φ = 5112358090368.

The previous prime is 5112778665011. The next prime is 5112778665073. The reversal of 5112778665053 is 3505668772115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2250906091204 + 2861872573849 = 1500302^2 + 1691707^2 .

It is a cyclic number.

It is not a de Polignac number, because 5112778665053 - 2⁸ = 5112778664797 is a prime.

It is a super-2 number, since 2×5112778665053² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5112778665053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5112778665073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210269108 + ... + 210293421.

It is an arithmetic number, because the mean of its divisors is an integer number (1278299809935).

Almost surely, 2^{5112778665053} is an apocalyptic number.

It is an amenable number.

5112778665053 is a deficient number, since it is larger than the sum of its proper divisors (420574687).

5112778665053 is a wasteful number, since it uses less digits than its factorization.

5112778665053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420574686.

The product of its (nonzero) digits is 10584000, while the sum is 56.

The spelling of 5112778665053 in words is "five trillion, one hundred twelve billion, seven hundred seventy-eight million, six hundred sixty-five thousand, fifty-three".