51332243 has 8 divisors (see below), whose sum is σ = 54104400. Its totient is φ = 48567168.

The previous prime is 51332227. The next prime is 51332269. The reversal of 51332243 is 34223315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51332243 - 2⁴ = 51332227 is a prime.

It is a super-2 number, since 2×51332243² = 5269998342822098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51332273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20255 + ... + 22647.

It is an arithmetic number, because the mean of its divisors is an integer number (6763050).

Almost surely, 2^51332243 is an apocalyptic number.

51332243 is a deficient number, since it is larger than the sum of its proper divisors (2772157).

51332243 is a wasteful number, since it uses less digits than its factorization.

51332243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541.

The product of its digits is 2160, while the sum is 23.

The square root of 51332243 is about 7164.6523293179. The cubic root of 51332243 is about 371.6465285216.

Adding to 51332243 its reverse (34223315), we get a palindrome (85555558).

The spelling of 51332243 in words is "fifty-one million, three hundred thirty-two thousand, two hundred forty-three".