51600242 has 8 divisors (see below), whose sum is σ = 78270300. Its totient is φ = 25510144.

The previous prime is 51600233. The next prime is 51600271. The reversal of 51600242 is 24200615.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43414921 + 8185321 = 6589^2 + 2861^2 .

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

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, 144767 + ... + 145122.

Almost surely, 2^51600242 is an apocalyptic number.

51600242 is a deficient number, since it is larger than the sum of its proper divisors (26670058).

51600242 is a wasteful number, since it uses less digits than its factorization.

51600242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289980.

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

The square root of 51600242 is about 7183.3308430003. The cubic root of 51600242 is about 372.2921790181.

Adding to 51600242 its reverse (24200615), we get a palindrome (75800857).

The spelling of 51600242 in words is "fifty-one million, six hundred thousand, two hundred forty-two".