51303155564245 has 16 divisors (see below), whose sum is σ = 66301080839280. Its totient is φ = 37884482463744.

The previous prime is 51303155564209. The next prime is 51303155564281. The reversal of 51303155564245 is 54246555130315.

It is an interprime number because it is at equal distance from previous prime (51303155564209) and next prime (51303155564281).

It can be written as a sum of positive squares in 8 ways, for example, as 9608059497969 + 41695096066276 = 3099687^2 + 6457174^2 .

It is a cyclic number.

It is not a de Polignac number, because 51303155564245 - 2⁷ = 51303155564117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6943290 + ... + 12280699.

It is an arithmetic number, because the mean of its divisors is an integer number (4143817552455).

Almost surely, 2^{51303155564245} is an apocalyptic number.

It is an amenable number.

51303155564245 is a deficient number, since it is larger than the sum of its proper divisors (14997925275035).

51303155564245 is a wasteful number, since it uses less digits than its factorization.

51303155564245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19265064.

The product of its (nonzero) digits is 5400000, while the sum is 49.

The spelling of 51303155564245 in words is "fifty-one trillion, three hundred three billion, one hundred fifty-five million, five hundred sixty-four thousand, two hundred forty-five".