51298573 has 4 divisors (see below), whose sum is σ = 52390080. Its totient is φ = 50207068.

The previous prime is 51298529. The next prime is 51298601. The reversal of 51298573 is 37589215.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37589215 = 5 ⋅7517843.

It is a cyclic number.

It is not a de Polignac number, because 51298573 - 2¹³ = 51290381 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51298523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545683 + ... + 545776.

It is an arithmetic number, because the mean of its divisors is an integer number (13097520).

Almost surely, 2^51298573 is an apocalyptic number.

It is an amenable number.

51298573 is a deficient number, since it is larger than the sum of its proper divisors (1091507).

51298573 is a wasteful number, since it uses less digits than its factorization.

51298573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091506.

The product of its digits is 75600, while the sum is 40.

The square root of 51298573 is about 7162.3022136740. The cubic root of 51298573 is about 371.5652535775.

The spelling of 51298573 in words is "fifty-one million, two hundred ninety-eight thousand, five hundred seventy-three".