51022530243 has 12 divisors (see below), whose sum is σ = 73721880648. Its totient is φ = 34004556960.

The previous prime is 51022530191. The next prime is 51022530259. The reversal of 51022530243 is 34203522015.

It is a happy number.

51022530243 is a `hidden beast` number, since 5 + 102 + 2 + 530 + 24 + 3 = 666.

It is not a de Polignac number, because 51022530243 - 2¹⁰ = 51022529219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51022530343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 840993 + ... + 899618.

It is an arithmetic number, because the mean of its divisors is an integer number (6143490054).

Almost surely, 2^51022530243 is an apocalyptic number.

51022530243 is a deficient number, since it is larger than the sum of its proper divisors (22699350405).

51022530243 is a wasteful number, since it uses less digits than its factorization.

51022530243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743874 (or 1743871 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The spelling of 51022530243 in words is "fifty-one billion, twenty-two million, five hundred thirty thousand, two hundred forty-three".