51514243 has 8 divisors (see below), whose sum is σ = 56249856. Its totient is φ = 46787400.

The previous prime is 51514213. The next prime is 51514261. The reversal of 51514243 is 34241515.

It is a happy number.

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

It is not a de Polignac number, because 51514243 - 2¹³ = 51506051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51514213) 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, 19330 + ... + 21832.

It is an arithmetic number, because the mean of its divisors is an integer number (7031232).

Almost surely, 2^51514243 is an apocalyptic number.

51514243 is a deficient number, since it is larger than the sum of its proper divisors (4735613).

51514243 is a wasteful number, since it uses less digits than its factorization.

51514243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385.

The product of its digits is 2400, while the sum is 25.

The square root of 51514243 is about 7177.3423354331. The cubic root of 51514243 is about 372.0852383970.

Adding to 51514243 its reverse (34241515), we get a palindrome (85755758).

The spelling of 51514243 in words is "fifty-one million, five hundred fourteen thousand, two hundred forty-three".