51455030553 has 24 divisors (see below), whose sum is σ = 74695214880. Its totient is φ = 34132201920.

The previous prime is 51455030533. The next prime is 51455030569. The reversal of 51455030553 is 35503055415.

51455030553 is a `hidden beast` number, since 5 + 145 + 503 + 0 + 5 + 5 + 3 = 666.

It is not a de Polignac number, because 51455030553 - 2⁶ = 51455030489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51455030533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3286578 + ... + 3302196.

It is an arithmetic number, because the mean of its divisors is an integer number (3112300620).

Almost surely, 2^51455030553 is an apocalyptic number.

It is an amenable number.

51455030553 is a deficient number, since it is larger than the sum of its proper divisors (23240184327).

51455030553 is a wasteful number, since it uses less digits than its factorization.

51455030553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17429 (or 17426 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 36.

Adding to 51455030553 its reverse (35503055415), we get a palindrome (86958085968).

The spelling of 51455030553 in words is "fifty-one billion, four hundred fifty-five million, thirty thousand, five hundred fifty-three".