51235455023 has 4 divisors (see below), whose sum is σ = 51241460928. Its totient is φ = 51229449120.

The previous prime is 51235454993. The next prime is 51235455067. The reversal of 51235455023 is 32055453215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51235455023 - 2¹⁰ = 51235453999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51235455923) 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, 2990138 + ... + 3007223.

It is an arithmetic number, because the mean of its divisors is an integer number (12810365232).

Almost surely, 2^51235455023 is an apocalyptic number.

51235455023 is a deficient number, since it is larger than the sum of its proper divisors (6005905).

51235455023 is an equidigital number, since it uses as much as digits as its factorization.

51235455023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005904.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 51235455023 in words is "fifty-one billion, two hundred thirty-five million, four hundred fifty-five thousand, twenty-three".