51214235242 has 16 divisors (see below), whose sum is σ = 76991731200. Its totient is φ = 25550372848.

The previous prime is 51214235231. The next prime is 51214235269. The reversal of 51214235242 is 24253241215.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2381703 + ... + 2403109.

It is an arithmetic number, because the mean of its divisors is an integer number (4811983200).

Almost surely, 2^51214235242 is an apocalyptic number.

51214235242 is a deficient number, since it is larger than the sum of its proper divisors (25777495958).

51214235242 is a wasteful number, since it uses less digits than its factorization.

51214235242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24005.

The product of its digits is 19200, while the sum is 31.

Adding to 51214235242 its reverse (24253241215), we get a palindrome (75467476457).

The spelling of 51214235242 in words is "fifty-one billion, two hundred fourteen million, two hundred thirty-five thousand, two hundred forty-two".