51026739 has 8 divisors (see below), whose sum is σ = 68321280. Its totient is φ = 33875016.

The previous prime is 51026687. The next prime is 51026791. The reversal of 51026739 is 93762015.

51026739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51026687) and next prime (51026791).

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

It is not a de Polignac number, because 51026739 - 2⁷ = 51026611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51026839) 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 in 7 ways as a sum of consecutive naturals, for example, 34867 + ... + 36300.

It is an arithmetic number, because the mean of its divisors is an integer number (8540160).

Almost surely, 2^51026739 is an apocalyptic number.

51026739 is a deficient number, since it is larger than the sum of its proper divisors (17294541).

51026739 is a wasteful number, since it uses less digits than its factorization.

51026739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71409.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 51026739 is about 7143.3002876822. The cubic root of 51026739 is about 370.9077758672.

The spelling of 51026739 in words is "fifty-one million, twenty-six thousand, seven hundred thirty-nine".