51019339 has 12 divisors (see below), whose sum is σ = 60021000. Its totient is φ = 43235808.

The previous prime is 51019333. The next prime is 51019343. The reversal of 51019339 is 93391015.

It is not a de Polignac number, because 51019339 - 2⁹ = 51018827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51019339.

It is not an unprimeable number, because it can be changed into a prime (51019333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1489 + ... + 10210.

It is an arithmetic number, because the mean of its divisors is an integer number (5001750).

Almost surely, 2^51019339 is an apocalyptic number.

51019339 is a deficient number, since it is larger than the sum of its proper divisors (9001661).

51019339 is a wasteful number, since it uses less digits than its factorization.

51019339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11802 (or 11795 counting only the distinct ones).

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 51019339 is about 7142.7823010365. The cubic root of 51019339 is about 370.8898450706.

The spelling of 51019339 in words is "fifty-one million, nineteen thousand, three hundred thirty-nine".