51641223 has 8 divisors (see below), whose sum is σ = 72905328. Its totient is φ = 32402304.

The previous prime is 51641179. The next prime is 51641231. The reversal of 51641223 is 32214615.

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

It is not a de Polignac number, because 51641223 - 2¹² = 51637127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51641193 and 51641202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51640223) 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, 506236 + ... + 506337.

It is an arithmetic number, because the mean of its divisors is an integer number (9113166).

Almost surely, 2^51641223 is an apocalyptic number.

51641223 is a deficient number, since it is larger than the sum of its proper divisors (21264105).

51641223 is a wasteful number, since it uses less digits than its factorization.

51641223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012593.

The product of its digits is 1440, while the sum is 24.

The square root of 51641223 is about 7186.1827836481. The cubic root of 51641223 is about 372.3907112986.

Adding to 51641223 its reverse (32214615), we get a palindrome (83855838).

The spelling of 51641223 in words is "fifty-one million, six hundred forty-one thousand, two hundred twenty-three".