51335773 has 2 divisors, whose sum is σ = 51335774. Its totient is φ = 51335772.

The previous prime is 51335743. The next prime is 51335807. The reversal of 51335773 is 37753315.

It is a happy number.

It is an a-pointer prime, because the next prime (51335807) can be obtained adding 51335773 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48958009 + 2377764 = 6997^2 + 1542^2 .

It is a cyclic number.

It is not a de Polignac number, because 51335773 - 2⁵ = 51335741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51335743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25667886 + 25667887.

It is an arithmetic number, because the mean of its divisors is an integer number (25667887).

Almost surely, 2^51335773 is an apocalyptic number.

It is an amenable number.

51335773 is a deficient number, since it is larger than the sum of its proper divisors (1).

51335773 is an equidigital number, since it uses as much as digits as its factorization.

51335773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33075, while the sum is 34.

The square root of 51335773 is about 7164.8986733938. The cubic root of 51335773 is about 371.6550474180.

The spelling of 51335773 in words is "fifty-one million, three hundred thirty-five thousand, seven hundred seventy-three".