51755433 has 4 divisors (see below), whose sum is σ = 69007248. Its totient is φ = 34503620.

The previous prime is 51755419. The next prime is 51755437. The reversal of 51755433 is 33455715.

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.

It is a cyclic number.

It is not a de Polignac number, because 51755433 - 2⁸ = 51755177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51755394 and 51755403.

It is not an unprimeable number, because it can be changed into a prime (51755437) 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, 8625903 + ... + 8625908.

It is an arithmetic number, because the mean of its divisors is an integer number (17251812).

Almost surely, 2^51755433 is an apocalyptic number.

It is an amenable number.

51755433 is a deficient number, since it is larger than the sum of its proper divisors (17251815).

51755433 is a wasteful number, since it uses less digits than its factorization.

51755433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17251814.

The product of its digits is 31500, while the sum is 33.

The square root of 51755433 is about 7194.1248946623. The cubic root of 51755433 is about 372.6650362493.

The spelling of 51755433 in words is "fifty-one million, seven hundred fifty-five thousand, four hundred thirty-three".