51012573 has 4 divisors (see below), whose sum is σ = 68016768. Its totient is φ = 34008380.

The previous prime is 51012517. The next prime is 51012581. The reversal of 51012573 is 37521015.

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 51012573 - 2⁶ = 51012509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51012503) 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, 8502093 + ... + 8502098.

It is an arithmetic number, because the mean of its divisors is an integer number (17004192).

Almost surely, 2^51012573 is an apocalyptic number.

It is an amenable number.

51012573 is a deficient number, since it is larger than the sum of its proper divisors (17004195).

51012573 is a wasteful number, since it uses less digits than its factorization.

51012573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17004194.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 51012573 is about 7142.3086603703. The cubic root of 51012573 is about 370.8734489897.

Adding to 51012573 its reverse (37521015), we get a palindrome (88533588).

The spelling of 51012573 in words is "fifty-one million, twelve thousand, five hundred seventy-three".