51214421003 has 4 divisors (see below), whose sum is σ = 51915988488. Its totient is φ = 50512853520.

The previous prime is 51214420991. The next prime is 51214421009. The reversal of 51214421003 is 30012441215.

51214421003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51214421003 - 2⁴ = 51214420987 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 51214421003.

It is not an unprimeable number, because it can be changed into a prime (51214421009) 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, 350783633 + ... + 350783778.

It is an arithmetic number, because the mean of its divisors is an integer number (12978997122).

Almost surely, 2^51214421003 is an apocalyptic number.

51214421003 is a deficient number, since it is larger than the sum of its proper divisors (701567485).

51214421003 is an equidigital number, since it uses as much as digits as its factorization.

51214421003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701567484.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 51214421003 its reverse (30012441215), we get a palindrome (81226862218).

The spelling of 51214421003 in words is "fifty-one billion, two hundred fourteen million, four hundred twenty-one thousand, three".