51343442 has 8 divisors (see below), whose sum is σ = 77058300. Its totient is φ = 25657344.

The previous prime is 51343441. The next prime is 51343483. The reversal of 51343442 is 24434315.

It can be written as a sum of positive squares in 2 ways, for example, as 44209201 + 7134241 = 6649^2 + 2671^2 .

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

It is a super-2 number, since 2×51343442² = 5272298072814728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51343441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967 + ... + 10322.

Almost surely, 2^51343442 is an apocalyptic number.

51343442 is a deficient number, since it is larger than the sum of its proper divisors (25714858).

51343442 is a wasteful number, since it uses less digits than its factorization.

51343442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14380.

The product of its digits is 5760, while the sum is 26.

The square root of 51343442 is about 7165.4338319463. The cubic root of 51343442 is about 371.6735535556.

Adding to 51343442 its reverse (24434315), we get a palindrome (75777757).

The spelling of 51343442 in words is "fifty-one million, three hundred forty-three thousand, four hundred forty-two".