51203940301 has 4 divisors (see below), whose sum is σ = 51244937500. Its totient is φ = 51162943104.

The previous prime is 51203940299. The next prime is 51203940311. The reversal of 51203940301 is 10304930215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30265560900 + 20938379401 = 173970^2 + 144701^2 .

It is a cyclic number.

It is not a de Polignac number, because 51203940301 - 2¹ = 51203940299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51203940301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51203940311) 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, 20496726 + ... + 20499223.

It is an arithmetic number, because the mean of its divisors is an integer number (12811234375).

Almost surely, 2^51203940301 is an apocalyptic number.

It is an amenable number.

51203940301 is a deficient number, since it is larger than the sum of its proper divisors (40997199).

51203940301 is a wasteful number, since it uses less digits than its factorization.

51203940301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40997198.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 51203940301 in words is "fifty-one billion, two hundred three million, nine hundred forty thousand, three hundred one".