51603867277 has 4 divisors (see below), whose sum is σ = 51618273280. Its totient is φ = 51589461276.

The previous prime is 51603867241. The next prime is 51603867397. The reversal of 51603867277 is 77276830615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51603867277 - 2²⁷ = 51469649549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51603877277) 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, 7197627 + ... + 7204792.

It is an arithmetic number, because the mean of its divisors is an integer number (12904568320).

Almost surely, 2^51603867277 is an apocalyptic number.

It is an amenable number.

51603867277 is a deficient number, since it is larger than the sum of its proper divisors (14406003).

51603867277 is a wasteful number, since it uses less digits than its factorization.

51603867277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14406002.

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 51603867277 in words is "fifty-one billion, six hundred three million, eight hundred sixty-seven thousand, two hundred seventy-seven".