51302242 has 8 divisors (see below), whose sum is σ = 81003600. Its totient is φ = 24301044.

The previous prime is 51302231. The next prime is 51302263. The reversal of 51302242 is 24220315.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674992 + ... + 675067.

It is an arithmetic number, because the mean of its divisors is an integer number (10125450).

Almost surely, 2^51302242 is an apocalyptic number.

51302242 is a deficient number, since it is larger than the sum of its proper divisors (29701358).

51302242 is a wasteful number, since it uses less digits than its factorization.

51302242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350080.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 51302242 is about 7162.5583418217. The cubic root of 51302242 is about 371.5741117863.

Adding to 51302242 its reverse (24220315), we get a palindrome (75522557).

The spelling of 51302242 in words is "fifty-one million, three hundred two thousand, two hundred forty-two".