51355033 has 2 divisors, whose sum is σ = 51355034. Its totient is φ = 51355032.

The previous prime is 51355009. The next prime is 51355037. The reversal of 51355033 is 33055315.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46826649 + 4528384 = 6843^2 + 2128^2 .

It is a cyclic number.

It is not a de Polignac number, because 51355033 - 2¹⁷ = 51223961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51354989 and 51355007.

It is not a weakly prime, because it can be changed into another prime (51355037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25677516 + 25677517.

It is an arithmetic number, because the mean of its divisors is an integer number (25677517).

Almost surely, 2^51355033 is an apocalyptic number.

It is an amenable number.

51355033 is a deficient number, since it is larger than the sum of its proper divisors (1).

51355033 is an equidigital number, since it uses as much as digits as its factorization.

51355033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 51355033 is about 7166.2425998566. The cubic root of 51355033 is about 371.7015204120.

It can be divided in two parts, 5135 and 5033, that multiplied together give a triangular number (25844455 = T₇₁₈₉).

The spelling of 51355033 in words is "fifty-one million, three hundred fifty-five thousand, thirty-three".