51505540451203 has 32 divisors (see below), whose sum is σ = 55910663424000. Its totient is φ = 47335292659200.

The previous prime is 51505540451161. The next prime is 51505540451227. The reversal of 51505540451203 is 30215404550515.

It is a cyclic number.

It is not a de Polignac number, because 51505540451203 - 2¹³ = 51505540443011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51505540451243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11372748 + ... + 15243046.

It is an arithmetic number, because the mean of its divisors is an integer number (1747208232000).

Almost surely, 2^{51505540451203} is an apocalyptic number.

51505540451203 is a deficient number, since it is larger than the sum of its proper divisors (4405122972797).

51505540451203 is a wasteful number, since it uses less digits than its factorization.

51505540451203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870603.

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 51505540451203 in words is "fifty-one trillion, five hundred five billion, five hundred forty million, four hundred fifty-one thousand, two hundred three".