51495167 has 4 divisors (see below), whose sum is σ = 51516696. Its totient is φ = 51473640.

The previous prime is 51495161. The next prime is 51495173. The reversal of 51495167 is 76159415.

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

It is an interprime number because it is at equal distance from previous prime (51495161) and next prime (51495173).

It is a cyclic number.

It is not a de Polignac number, because 51495167 - 2⁴ = 51495151 is a prime.

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 51495167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51495161) 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, 6653 + ... + 12134.

It is an arithmetic number, because the mean of its divisors is an integer number (12879174).

Almost surely, 2^51495167 is an apocalyptic number.

51495167 is a deficient number, since it is larger than the sum of its proper divisors (21529).

51495167 is a wasteful number, since it uses less digits than its factorization.

51495167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21528.

The product of its digits is 37800, while the sum is 38.

The square root of 51495167 is about 7176.0133082374. The cubic root of 51495167 is about 372.0393043413.

The spelling of 51495167 in words is "fifty-one million, four hundred ninety-five thousand, one hundred sixty-seven".