51460223 has 4 divisors (see below), whose sum is σ = 53697648. Its totient is φ = 49222800.

The previous prime is 51460183. The next prime is 51460231. The reversal of 51460223 is 32206415.

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 51460223 - 2²² = 47265919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 2237401 = 51460223 / (5 + 1 + 4 + 6 + 0 + 2 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51460243) 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, 1118678 + ... + 1118723.

It is an arithmetic number, because the mean of its divisors is an integer number (13424412).

Almost surely, 2^51460223 is an apocalyptic number.

51460223 is a deficient number, since it is larger than the sum of its proper divisors (2237425).

51460223 is a wasteful number, since it uses less digits than its factorization.

51460223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237424.

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

The square root of 51460223 is about 7173.5781169511. The cubic root of 51460223 is about 371.9551315021.

Adding to 51460223 its reverse (32206415), we get a palindrome (83666638).

The spelling of 51460223 in words is "fifty-one million, four hundred sixty thousand, two hundred twenty-three".