51543433023 has 16 divisors (see below), whose sum is σ = 70600281696. Its totient is φ = 33429186560.

The previous prime is 51543432991. The next prime is 51543433037. The reversal of 51543433023 is 32033434515.

51543433023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51543433023 - 2⁵ = 51543432991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51543433223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550140 + ... + 636977.

It is an arithmetic number, because the mean of its divisors is an integer number (4412517606).

Almost surely, 2^51543433023 is an apocalyptic number.

51543433023 is a deficient number, since it is larger than the sum of its proper divisors (19056848673).

51543433023 is a wasteful number, since it uses less digits than its factorization.

51543433023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187514.

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 51543433023 its reverse (32033434515), we get a palindrome (83576867538).

The spelling of 51543433023 in words is "fifty-one billion, five hundred forty-three million, four hundred thirty-three thousand, twenty-three".