51037739 has 2 divisors, whose sum is σ = 51037740. Its totient is φ = 51037738.

The previous prime is 51037703. The next prime is 51037741. The reversal of 51037739 is 93773015.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51037739 is a prime.

Together with 51037741, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51037699 and 51037708.

It is not a weakly prime, because it can be changed into another prime (51037769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25518869 + 25518870.

It is an arithmetic number, because the mean of its divisors is an integer number (25518870).

Almost surely, 2^51037739 is an apocalyptic number.

51037739 is a deficient number, since it is larger than the sum of its proper divisors (1).

51037739 is an equidigital number, since it uses as much as digits as its factorization.

51037739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 51037739 is about 7144.0701984233. The cubic root of 51037739 is about 370.9344265505.

The spelling of 51037739 in words is "fifty-one million, thirty-seven thousand, seven hundred thirty-nine".