51099833 has 2 divisors, whose sum is σ = 51099834. Its totient is φ = 51099832.

The previous prime is 51099823. The next prime is 51099871. The reversal of 51099833 is 33899015.

It is an a-pointer prime, because the next prime (51099871) can be obtained adding 51099833 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51093904 + 5929 = 7148^2 + 77^2 .

It is a cyclic number.

It is not a de Polignac number, because 51099833 - 2¹⁶ = 51034297 is a prime.

It is a super-2 number, since 2×51099833² = 5222385865255778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51099823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25549916 + 25549917.

It is an arithmetic number, because the mean of its divisors is an integer number (25549917).

Almost surely, 2^51099833 is an apocalyptic number.

It is an amenable number.

51099833 is a deficient number, since it is larger than the sum of its proper divisors (1).

51099833 is an equidigital number, since it uses as much as digits as its factorization.

51099833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 51099833 is about 7148.4147193626. The cubic root of 51099833 is about 371.0847954622.

The spelling of 51099833 in words is "fifty-one million, ninety-nine thousand, eight hundred thirty-three".