51099733 has 2 divisors, whose sum is σ = 51099734. Its totient is φ = 51099732.

The previous prime is 51099709. The next prime is 51099787. The reversal of 51099733 is 33799015.

51099733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51022449 + 77284 = 7143^2 + 278^2 .

It is a cyclic number.

It is not a de Polignac number, because 51099733 - 2¹⁷ = 50968661 is a prime.

It is a super-2 number, since 2×51099733² = 5222365425342578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51099692 and 51099701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51099833) 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 as a sum of consecutive naturals, namely, 25549866 + 25549867.

It is an arithmetic number, because the mean of its divisors is an integer number (25549867).

Almost surely, 2^51099733 is an apocalyptic number.

It is an amenable number.

51099733 is a deficient number, since it is larger than the sum of its proper divisors (1).

51099733 is an equidigital number, since it uses as much as digits as its factorization.

51099733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 51099733 is about 7148.4077248014. The cubic root of 51099733 is about 371.0845533968.

The spelling of 51099733 in words is "fifty-one million, ninety-nine thousand, seven hundred thirty-three".