51255573963 has 16 divisors (see below), whose sum is σ = 75322160256. Its totient is φ = 30743735040.

The previous prime is 51255573947. The next prime is 51255573973. The reversal of 51255573963 is 36937555215.

It is not a de Polignac number, because 51255573963 - 2⁴ = 51255573947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51255573973) 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, 8002981 + ... + 8009382.

It is an arithmetic number, because the mean of its divisors is an integer number (4707635016).

Almost surely, 2^51255573963 is an apocalyptic number.

51255573963 is a deficient number, since it is larger than the sum of its proper divisors (24066586293).

51255573963 is a wasteful number, since it uses less digits than its factorization.

51255573963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16012474.

The product of its digits is 4252500, while the sum is 51.

The spelling of 51255573963 in words is "fifty-one billion, two hundred fifty-five million, five hundred seventy-three thousand, nine hundred sixty-three".