51167237 has 8 divisors (see below), whose sum is σ = 55870752. Its totient is φ = 46472400.

The previous prime is 51167231. The next prime is 51167243. The reversal of 51167237 is 73276115.

It is an interprime number because it is at equal distance from previous prime (51167231) and next prime (51167243).

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 51167237 - 2⁶ = 51167173 is a prime.

It is a super-2 number, since 2×51167237² = 5236172284428338, 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 (51167231) 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, 20687 + ... + 23027.

It is an arithmetic number, because the mean of its divisors is an integer number (6983844).

Almost surely, 2^51167237 is an apocalyptic number.

It is an amenable number.

51167237 is a deficient number, since it is larger than the sum of its proper divisors (4703515).

51167237 is a wasteful number, since it uses less digits than its factorization.

51167237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339.

The product of its digits is 8820, while the sum is 32.

The square root of 51167237 is about 7153.1277774132. The cubic root of 51167237 is about 371.2478854267.

The spelling of 51167237 in words is "fifty-one million, one hundred sixty-seven thousand, two hundred thirty-seven".