51500113023 has 8 divisors (see below), whose sum is σ = 68671819008. Its totient is φ = 34330907864.

The previous prime is 51500112943. The next prime is 51500113031. The reversal of 51500113023 is 32031100515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51500113023 - 2²⁶ = 51433004159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51500113033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576615 + ... + 659912.

It is an arithmetic number, because the mean of its divisors is an integer number (8583977376).

Almost surely, 2^51500113023 is an apocalyptic number.

51500113023 is a deficient number, since it is larger than the sum of its proper divisors (17171705985).

51500113023 is a wasteful number, since it uses less digits than its factorization.

51500113023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250413.

The product of its (nonzero) digits is 450, while the sum is 21.

Adding to 51500113023 its reverse (32031100515), we get a palindrome (83531213538).

The spelling of 51500113023 in words is "fifty-one billion, five hundred million, one hundred thirteen thousand, twenty-three".