51233034655530 has 96 divisors (see below), whose sum is σ = 163945710923904. Its totient is φ = 10809607310208.

The previous prime is 51233034655457. The next prime is 51233034655531. The reversal of 51233034655530 is 3555643033215.

It is a happy number.

51233034655530 is a `hidden beast` number, since 5 + 1 + 2 + 3 + 3 + 0 + 34 + 65 + 553 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (51233034655531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3127771704 + ... + 3127788083.

It is an arithmetic number, because the mean of its divisors is an integer number (1707767822124).

Almost surely, 2^{51233034655530} is an apocalyptic number.

51233034655530 is an abundant number, since it is smaller than the sum of its proper divisors (112712676268374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51233034655530 is a wasteful number, since it uses less digits than its factorization.

51233034655530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6255559820 (or 6255559817 counting only the distinct ones).

The product of its (nonzero) digits is 2430000, while the sum is 45.

Adding to 51233034655530 its reverse (3555643033215), we get a palindrome (54788677688745).

The spelling of 51233034655530 in words is "fifty-one trillion, two hundred thirty-three billion, thirty-four million, six hundred fifty-five thousand, five hundred thirty".