51425054503 has 16 divisors (see below), whose sum is σ = 52658012160. Its totient is φ = 50209286400.

The previous prime is 51425054479. The next prime is 51425054507. The reversal of 51425054503 is 30545052415.

It is a cyclic number.

It is not a de Polignac number, because 51425054503 - 2²¹ = 51422957351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51425054507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3112023 + ... + 3128503.

It is an arithmetic number, because the mean of its divisors is an integer number (3291125760).

Almost surely, 2^51425054503 is an apocalyptic number.

51425054503 is a deficient number, since it is larger than the sum of its proper divisors (1232957657).

51425054503 is a wasteful number, since it uses less digits than its factorization.

51425054503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16998.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 51425054503 in words is "fifty-one billion, four hundred twenty-five million, fifty-four thousand, five hundred three".