51276619 has 2 divisors, whose sum is σ = 51276620. Its totient is φ = 51276618.

The previous prime is 51276613. The next prime is 51276623. The reversal of 51276619 is 91667215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51276619 - 2¹¹ = 51274571 is a prime.

It is a super-2 number, since 2×51276619² = 5258583312142322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51276613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25638309 + 25638310.

It is an arithmetic number, because the mean of its divisors is an integer number (25638310).

Almost surely, 2^51276619 is an apocalyptic number.

51276619 is a deficient number, since it is larger than the sum of its proper divisors (1).

51276619 is an equidigital number, since it uses as much as digits as its factorization.

51276619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 51276619 is about 7160.7694418966. The cubic root of 51276619 is about 371.5122403579.

The spelling of 51276619 in words is "fifty-one million, two hundred seventy-six thousand, six hundred nineteen".