51100503001 has 4 divisors (see below), whose sum is σ = 51382826404. Its totient is φ = 50818179600.

The previous prime is 51100502993. The next prime is 51100503061. The reversal of 51100503001 is 10030500115.

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 22226337225 + 28874165776 = 149085^2 + 169924^2 .

It is a cyclic number.

It is not a de Polignac number, because 51100503001 - 2³ = 51100502993 is a prime.

It is a super-2 number, since 2×51100503001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51100503061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141161430 + ... + 141161791.

It is an arithmetic number, because the mean of its divisors is an integer number (12845706601).

Almost surely, 2^51100503001 is an apocalyptic number.

It is an amenable number.

51100503001 is a deficient number, since it is larger than the sum of its proper divisors (282323403).

51100503001 is a wasteful number, since it uses less digits than its factorization.

51100503001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282323402.

The product of its (nonzero) digits is 75, while the sum is 16.

The spelling of 51100503001 in words is "fifty-one billion, one hundred million, five hundred three thousand, one".