51340500023 has 4 divisors (see below), whose sum is σ = 51341043120. Its totient is φ = 51339956928.

The previous prime is 51340500017. The next prime is 51340500037. The reversal of 51340500023 is 32000504315.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 51340500023 - 2⁴ = 51340500007 is a prime.

It is a super-3 number, since 3×51340500023³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51340500823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88715 + ... + 332492.

It is an arithmetic number, because the mean of its divisors is an integer number (12835260780).

Almost surely, 2^51340500023 is an apocalyptic number.

51340500023 is a deficient number, since it is larger than the sum of its proper divisors (543097).

51340500023 is a wasteful number, since it uses less digits than its factorization.

51340500023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543096.

The product of its (nonzero) digits is 1800, while the sum is 23.

The spelling of 51340500023 in words is "fifty-one billion, three hundred forty million, five hundred thousand, twenty-three".