51552533423 has 4 divisors (see below), whose sum is σ = 52062954648. Its totient is φ = 51042112200.

The previous prime is 51552533401. The next prime is 51552533441. The reversal of 51552533423 is 32433525515.

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 51552533423 - 2²⁰ = 51551484847 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 (51552533453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255210461 + ... + 255210662.

It is an arithmetic number, because the mean of its divisors is an integer number (13015738662).

Almost surely, 2^51552533423 is an apocalyptic number.

51552533423 is a deficient number, since it is larger than the sum of its proper divisors (510421225).

51552533423 is a wasteful number, since it uses less digits than its factorization.

51552533423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510421224.

The product of its digits is 270000, while the sum is 38.

The spelling of 51552533423 in words is "fifty-one billion, five hundred fifty-two million, five hundred thirty-three thousand, four hundred twenty-three".