51552244202 has 16 divisors (see below), whose sum is σ = 77595908040. Its totient is φ = 25687085568.

The previous prime is 51552244199. The next prime is 51552244217. The reversal of 51552244202 is 20244225515.

It can be written as a sum of positive squares in 4 ways, for example, as 51443229721 + 109014481 = 226811^2 + 10441^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693074 + ... + 763842.

Almost surely, 2^51552244202 is an apocalyptic number.

51552244202 is a deficient number, since it is larger than the sum of its proper divisors (26043663838).

51552244202 is a wasteful number, since it uses less digits than its factorization.

51552244202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72025.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 51552244202 its reverse (20244225515), we get a palindrome (71796469717).

The spelling of 51552244202 in words is "fifty-one billion, five hundred fifty-two million, two hundred forty-four thousand, two hundred two".