51509196202 has 8 divisors (see below), whose sum is σ = 77536812096. Its totient is φ = 25663592172.

The previous prime is 51509196181. The next prime is 51509196203. The reversal of 51509196202 is 20269190515.

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

It is a super-2 number, since 2×51509196202² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51509196203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45502258 + ... + 45503389.

It is an arithmetic number, because the mean of its divisors is an integer number (9692101512).

Almost surely, 2^51509196202 is an apocalyptic number.

51509196202 is a deficient number, since it is larger than the sum of its proper divisors (26027615894).

51509196202 is a wasteful number, since it uses less digits than its factorization.

51509196202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91005932.

The product of its (nonzero) digits is 48600, while the sum is 40.

The spelling of 51509196202 in words is "fifty-one billion, five hundred nine million, one hundred ninety-six thousand, two hundred two".