51373052202 has 16 divisors (see below), whose sum is σ = 102784289760. Its totient is φ = 17117986512.

The previous prime is 51373052183. The next prime is 51373052209. The reversal of 51373052202 is 20225037315.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51373052202.

It is not an unprimeable number, because it can be changed into a prime (51373052209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1573552 + ... + 1605867.

It is an arithmetic number, because the mean of its divisors is an integer number (6424018110).

Almost surely, 2^51373052202 is an apocalyptic number.

51373052202 is an abundant number, since it is smaller than the sum of its proper divisors (51411237558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51373052202 is a wasteful number, since it uses less digits than its factorization.

51373052202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182117.

The product of its (nonzero) digits is 12600, while the sum is 30.

Adding to 51373052202 its reverse (20225037315), we get a palindrome (71598089517).

The spelling of 51373052202 in words is "fifty-one billion, three hundred seventy-three million, fifty-two thousand, two hundred two".