51454243 has 8 divisors (see below), whose sum is σ = 53805600. Its totient is φ = 49205464.

The previous prime is 51454229. The next prime is 51454253. The reversal of 51454243 is 34245415.

It is not a de Polignac number, because 51454243 - 2¹³ = 51446051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51454253) 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, 10053 + ... + 14281.

It is an arithmetic number, because the mean of its divisors is an integer number (6725700).

Almost surely, 2^51454243 is an apocalyptic number.

51454243 is a deficient number, since it is larger than the sum of its proper divisors (2351357).

51454243 is an frugal number, since it uses more digits than its factorization.

51454243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298 (or 4252 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 51454243 is about 7173.1612975034. The cubic root of 51454243 is about 371.9407231059.

Adding to 51454243 its reverse (34245415), we get a palindrome (85699658).

The spelling of 51454243 in words is "fifty-one million, four hundred fifty-four thousand, two hundred forty-three".