51023237 has 2 divisors, whose sum is σ = 51023238. Its totient is φ = 51023236.

The previous prime is 51023233. The next prime is 51023257. The reversal of 51023237 is 73232015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48874081 + 2149156 = 6991^2 + 1466^2 .

It is a cyclic number.

It is not a de Polignac number, because 51023237 - 2² = 51023233 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51023233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25511618 + 25511619.

It is an arithmetic number, because the mean of its divisors is an integer number (25511619).

Almost surely, 2^51023237 is an apocalyptic number.

It is an amenable number.

51023237 is a deficient number, since it is larger than the sum of its proper divisors (1).

51023237 is an equidigital number, since it uses as much as digits as its factorization.

51023237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 51023237 is about 7143.0551586839. The cubic root of 51023237 is about 370.8992904549.

The spelling of 51023237 in words is "fifty-one million, twenty-three thousand, two hundred thirty-seven".