51533543101 has 4 divisors (see below), whose sum is σ = 51546369600. Its totient is φ = 51520716604.

The previous prime is 51533543093. The next prime is 51533543123. The reversal of 51533543101 is 10134533515.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10134533515 = 5 ⋅2026906703.

It is a cyclic number.

It is not a de Polignac number, because 51533543101 - 2³ = 51533543093 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 (51533543401) 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, 6407221 + ... + 6415258.

It is an arithmetic number, because the mean of its divisors is an integer number (12886592400).

Almost surely, 2^51533543101 is an apocalyptic number.

It is an amenable number.

51533543101 is a deficient number, since it is larger than the sum of its proper divisors (12826499).

51533543101 is a wasteful number, since it uses less digits than its factorization.

51533543101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12826498.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 51533543101 in words is "fifty-one billion, five hundred thirty-three million, five hundred forty-three thousand, one hundred one".