51973167 has 8 divisors (see below), whose sum is σ = 69387696. Its totient is φ = 34603712.

The previous prime is 51973157. The next prime is 51973171. The reversal of 51973167 is 76137915.

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 51973167 - 2⁸ = 51972911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51973157) 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, 8478 + ... + 13259.

It is an arithmetic number, because the mean of its divisors is an integer number (8673462).

Almost surely, 2^51973167 is an apocalyptic number.

51973167 is a deficient number, since it is larger than the sum of its proper divisors (17414529).

51973167 is a wasteful number, since it uses less digits than its factorization.

51973167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22537.

The product of its digits is 39690, while the sum is 39.

The square root of 51973167 is about 7209.2417770526. The cubic root of 51973167 is about 373.1869030509.

The spelling of 51973167 in words is "fifty-one million, nine hundred seventy-three thousand, one hundred sixty-seven".