51787033 has 2 divisors, whose sum is σ = 51787034. Its totient is φ = 51787032.

The previous prime is 51786991. The next prime is 51787079. The reversal of 51787033 is 33078715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41113744 + 10673289 = 6412^2 + 3267^2 .

It is a cyclic number.

It is not a de Polignac number, because 51787033 - 2⁹ = 51786521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51787033.

It is not a weakly prime, because it can be changed into another prime (51785033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25893516 + 25893517.

It is an arithmetic number, because the mean of its divisors is an integer number (25893517).

Almost surely, 2^51787033 is an apocalyptic number.

It is an amenable number.

51787033 is a deficient number, since it is larger than the sum of its proper divisors (1).

51787033 is an equidigital number, since it uses as much as digits as its factorization.

51787033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 51787033 is about 7196.3207960735. The cubic root of 51787033 is about 372.7408660934.

The spelling of 51787033 in words is "fifty-one million, seven hundred eighty-seven thousand, thirty-three".