51304142 has 16 divisors (see below), whose sum is σ = 81229200. Its totient is φ = 24235200.

The previous prime is 51304133. The next prime is 51304151. The reversal of 51304142 is 24140315.

It is an interprime number because it is at equal distance from previous prime (51304133) and next prime (51304151).

It is a super-2 number, since 2×51304142² = 5264229972712328, which contains 22 as substring.

It is a congruent 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, 13892 + ... + 17192.

It is an arithmetic number, because the mean of its divisors is an integer number (5076825).

Almost surely, 2^51304142 is an apocalyptic number.

51304142 is a deficient number, since it is larger than the sum of its proper divisors (29925058).

51304142 is a wasteful number, since it uses less digits than its factorization.

51304142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 51304142 is about 7162.6909747664. The cubic root of 51304142 is about 371.5786988639.

Adding to 51304142 its reverse (24140315), we get a palindrome (75444457).

The spelling of 51304142 in words is "fifty-one million, three hundred four thousand, one hundred forty-two".