51523104851 has 4 divisors (see below), whose sum is σ = 52033234704. Its totient is φ = 51012975000.

The previous prime is 51523104847. The next prime is 51523104883. The reversal of 51523104851 is 15840132515.

51523104851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51523104851 - 2² = 51523104847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51523104151) 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, 255064775 + ... + 255064976.

It is an arithmetic number, because the mean of its divisors is an integer number (13008308676).

Almost surely, 2^51523104851 is an apocalyptic number.

51523104851 is a deficient number, since it is larger than the sum of its proper divisors (510129853).

51523104851 is a wasteful number, since it uses less digits than its factorization.

51523104851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510129852.

The product of its (nonzero) digits is 24000, while the sum is 35.

The spelling of 51523104851 in words is "fifty-one billion, five hundred twenty-three million, one hundred four thousand, eight hundred fifty-one".