51276463 has 4 divisors (see below), whose sum is σ = 58601680. Its totient is φ = 43951248.

The previous prime is 51276461. The next prime is 51276469. The reversal of 51276463 is 36467215.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36467215 = 5 ⋅7293443.

It is a cyclic number.

It is not a de Polignac number, because 51276463 - 2¹ = 51276461 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 (51276461) 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, 3662598 + ... + 3662611.

It is an arithmetic number, because the mean of its divisors is an integer number (14650420).

Almost surely, 2^51276463 is an apocalyptic number.

51276463 is a deficient number, since it is larger than the sum of its proper divisors (7325217).

51276463 is an equidigital number, since it uses as much as digits as its factorization.

51276463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7325216.

The product of its digits is 30240, while the sum is 34.

The square root of 51276463 is about 7160.7585492041. The cubic root of 51276463 is about 371.5118636042.

The spelling of 51276463 in words is "fifty-one million, two hundred seventy-six thousand, four hundred sixty-three".