51235423307 has 4 divisors (see below), whose sum is σ = 51257311776. Its totient is φ = 51213534840.

The previous prime is 51235423273. The next prime is 51235423391. The reversal of 51235423307 is 70332453215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70332453215 = 5 ⋅14066490643.

It is a cyclic number.

It is not a de Polignac number, because 51235423307 - 2¹⁰ = 51235422283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51235423207) 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, 10940723 + ... + 10945404.

It is an arithmetic number, because the mean of its divisors is an integer number (12814327944).

Almost surely, 2^51235423307 is an apocalyptic number.

51235423307 is a deficient number, since it is larger than the sum of its proper divisors (21888469).

51235423307 is a wasteful number, since it uses less digits than its factorization.

51235423307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21888468.

The product of its (nonzero) digits is 75600, while the sum is 35.

The spelling of 51235423307 in words is "fifty-one billion, two hundred thirty-five million, four hundred twenty-three thousand, three hundred seven".