51445245303 has 24 divisors (see below), whose sum is σ = 75052662048. Its totient is φ = 33954161472.

The previous prime is 51445245211. The next prime is 51445245343. The reversal of 51445245303 is 30354254415.

It is not a de Polignac number, because 51445245303 - 2⁹ = 51445244791 is a prime.

It is a super-2 number, since 2×51445245303² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51445245343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4849401 + ... + 4859997.

It is an arithmetic number, because the mean of its divisors is an integer number (3127194252).

Almost surely, 2^51445245303 is an apocalyptic number.

51445245303 is a deficient number, since it is larger than the sum of its proper divisors (23607416745).

51445245303 is a wasteful number, since it uses less digits than its factorization.

51445245303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15943 (or 15940 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 51445245303 its reverse (30354254415), we get a palindrome (81799499718).

The spelling of 51445245303 in words is "fifty-one billion, four hundred forty-five million, two hundred forty-five thousand, three hundred three".