51252030573 has 4 divisors (see below), whose sum is σ = 68336040768. Its totient is φ = 34168020380.

The previous prime is 51252030551. The next prime is 51252030587. The reversal of 51252030573 is 37503025215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51252030573 - 2²⁰ = 51250981997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51252030523) 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, 8542005093 + ... + 8542005098.

It is an arithmetic number, because the mean of its divisors is an integer number (17084010192).

Almost surely, 2^51252030573 is an apocalyptic number.

It is an amenable number.

51252030573 is a deficient number, since it is larger than the sum of its proper divisors (17084010195).

51252030573 is a wasteful number, since it uses less digits than its factorization.

51252030573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17084010194.

The product of its (nonzero) digits is 31500, while the sum is 33.

Adding to 51252030573 its reverse (37503025215), we get a palindrome (88755055788).

The spelling of 51252030573 in words is "fifty-one billion, two hundred fifty-two million, thirty thousand, five hundred seventy-three".