51719937 has 8 divisors (see below), whose sum is σ = 69141504. Its totient is φ = 34389168.

The previous prime is 51719923. The next prime is 51719951. The reversal of 51719937 is 73991715.

It is an interprime number because it is at equal distance from previous prime (51719923) and next prime (51719951).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51719937 - 2⁷ = 51719809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51719917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21358 + ... + 23655.

It is an arithmetic number, because the mean of its divisors is an integer number (8642688).

Almost surely, 2^51719937 is an apocalyptic number.

It is an amenable number.

51719937 is a deficient number, since it is larger than the sum of its proper divisors (17421567).

51719937 is a wasteful number, since it uses less digits than its factorization.

51719937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45399.

The product of its digits is 59535, while the sum is 42.

The square root of 51719937 is about 7191.6574584723. The cubic root of 51719937 is about 372.5798204395.

The spelling of 51719937 in words is "fifty-one million, seven hundred nineteen thousand, nine hundred thirty-seven".