51672619 has 2 divisors, whose sum is σ = 51672620. Its totient is φ = 51672618.

The previous prime is 51672589. The next prime is 51672623. The reversal of 51672619 is 91627615.

51672619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51672619 is a prime.

It is a super-4 number, since 4×51672619⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (51672659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25836309 + 25836310.

It is an arithmetic number, because the mean of its divisors is an integer number (25836310).

Almost surely, 2^51672619 is an apocalyptic number.

51672619 is a deficient number, since it is larger than the sum of its proper divisors (1).

51672619 is an equidigital number, since it uses as much as digits as its factorization.

51672619 is an odious number, because the sum of its binary digits is odd.

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

The square root of 51672619 is about 7188.3669216311. The cubic root of 51672619 is about 372.4661627147.

The spelling of 51672619 in words is "fifty-one million, six hundred seventy-two thousand, six hundred nineteen".