53006512003 has 4 divisors (see below), whose sum is σ = 53142775920. Its totient is φ = 52870248088.

The previous prime is 53006511977. The next prime is 53006512049. The reversal of 53006512003 is 30021560035.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30021560035 = 5 ⋅6004312007.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53006512003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53006510003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68131375 + ... + 68132152.

It is an arithmetic number, because the mean of its divisors is an integer number (13285693980).

Almost surely, 2^53006512003 is an apocalyptic number.

53006512003 is a deficient number, since it is larger than the sum of its proper divisors (136263917).

53006512003 is a wasteful number, since it uses less digits than its factorization.

53006512003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136263916.

The product of its (nonzero) digits is 2700, while the sum is 25.

The spelling of 53006512003 in words is "fifty-three billion, six million, five hundred twelve thousand, three".