51244202 has 8 divisors (see below), whose sum is σ = 77265156. Its totient is φ = 25489152.

The previous prime is 51244199. The next prime is 51244217. The reversal of 51244202 is 20244215.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39677401 + 11566801 = 6299^2 + 3401^2 .

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, 65993 + ... + 66764.

Almost surely, 2^51244202 is an apocalyptic number.

51244202 is a deficient number, since it is larger than the sum of its proper divisors (26020954).

51244202 is a wasteful number, since it uses less digits than its factorization.

51244202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132952.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 51244202 is about 7158.5055702989. The cubic root of 51244202 is about 371.4339340308.

Adding to 51244202 its reverse (20244215), we get a palindrome (71488417).

The spelling of 51244202 in words is "fifty-one million, two hundred forty-four thousand, two hundred two".