51143254 has 16 divisors (see below), whose sum is σ = 79794000. Its totient is φ = 24564960.

The previous prime is 51143233. The next prime is 51143291. The reversal of 51143254 is 45234115.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 372 + ... + 10120.

It is an arithmetic number, because the mean of its divisors is an integer number (4987125).

Almost surely, 2^51143254 is an apocalyptic number.

51143254 is a deficient number, since it is larger than the sum of its proper divisors (28650746).

51143254 is a wasteful number, since it uses less digits than its factorization.

51143254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9855.

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

The square root of 51143254 is about 7151.4511814037. The cubic root of 51143254 is about 371.1898728519.

Adding to 51143254 its reverse (45234115), we get a palindrome (96377369).

The spelling of 51143254 in words is "fifty-one million, one hundred forty-three thousand, two hundred fifty-four".