51116567 has 8 divisors (see below), whose sum is σ = 51767856. Its totient is φ = 50468992.

The previous prime is 51116563. The next prime is 51116579. The reversal of 51116567 is 76561115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51116567 - 2² = 51116563 is a prime.

It is a super-2 number, since 2×51116567² = 5225806843730978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51116561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35108 + ... + 36534.

It is an arithmetic number, because the mean of its divisors is an integer number (6470982).

Almost surely, 2^51116567 is an apocalyptic number.

51116567 is a deficient number, since it is larger than the sum of its proper divisors (651289).

51116567 is a wasteful number, since it uses less digits than its factorization.

51116567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857.

The product of its digits is 6300, while the sum is 32.

The square root of 51116567 is about 7149.5850928568. The cubic root of 51116567 is about 371.1252982380.

The spelling of 51116567 in words is "fifty-one million, one hundred sixteen thousand, five hundred sixty-seven".