51122467 has 4 divisors (see below), whose sum is σ = 55769976. Its totient is φ = 46474960.

The previous prime is 51122437. The next prime is 51122471. The reversal of 51122467 is 76422115.

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

It is a cyclic number.

It is not a de Polignac number, because 51122467 - 2¹⁵ = 51089699 is a prime.

It is a super-2 number, since 2×51122467² = 5227013264332178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51122437) 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, 2323738 + ... + 2323759.

It is an arithmetic number, because the mean of its divisors is an integer number (13942494).

Almost surely, 2^51122467 is an apocalyptic number.

51122467 is a deficient number, since it is larger than the sum of its proper divisors (4647509).

51122467 is a wasteful number, since it uses less digits than its factorization.

51122467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647508.

The product of its digits is 3360, while the sum is 28.

The square root of 51122467 is about 7149.9976923073. The cubic root of 51122467 is about 371.1395764205.

The spelling of 51122467 in words is "fifty-one million, one hundred twenty-two thousand, four hundred sixty-seven".