51233441 has 4 divisors (see below), whose sum is σ = 58552512. Its totient is φ = 43914372.

The previous prime is 51233437. The next prime is 51233453. The reversal of 51233441 is 14433215.

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: 14433215 = 5 ⋅2886643.

It is a cyclic number.

It is not a de Polignac number, because 51233441 - 2² = 51233437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51233491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3659525 + ... + 3659538.

It is an arithmetic number, because the mean of its divisors is an integer number (14638128).

Almost surely, 2^51233441 is an apocalyptic number.

It is an amenable number.

51233441 is a deficient number, since it is larger than the sum of its proper divisors (7319071).

51233441 is an equidigital number, since it uses as much as digits as its factorization.

51233441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7319070.

The product of its digits is 1440, while the sum is 23.

The square root of 51233441 is about 7157.7539074768. The cubic root of 51233441 is about 371.4079325176.

Adding to 51233441 its reverse (14433215), we get a palindrome (65666656).

The spelling of 51233441 in words is "fifty-one million, two hundred thirty-three thousand, four hundred forty-one".