51452167 has 4 divisors (see below), whose sum is σ = 55410040. Its totient is φ = 47494296.

The previous prime is 51452143. The next prime is 51452201. The reversal of 51452167 is 76125415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76125415 = 5 ⋅15225083.

It is a cyclic number.

It is not a de Polignac number, because 51452167 - 2¹⁵ = 51419399 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 (51452267) 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, 1978917 + ... + 1978942.

It is an arithmetic number, because the mean of its divisors is an integer number (13852510).

Almost surely, 2^51452167 is an apocalyptic number.

51452167 is a deficient number, since it is larger than the sum of its proper divisors (3957873).

51452167 is a wasteful number, since it uses less digits than its factorization.

51452167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957872.

The product of its digits is 8400, while the sum is 31.

The square root of 51452167 is about 7173.0165899711. The cubic root of 51452167 is about 371.9357208665.

The spelling of 51452167 in words is "fifty-one million, four hundred fifty-two thousand, one hundred sixty-seven".