51274033 has 4 divisors (see below), whose sum is σ = 51421300. Its totient is φ = 51126768.

The previous prime is 51274021. The next prime is 51274043. The reversal of 51274033 is 33047215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33047215 = 5 ⋅6609443.

It can be written as a sum of positive squares in 2 ways, for example, as 30780304 + 20493729 = 5548^2 + 4527^2 .

It is a cyclic number.

It is not a de Polignac number, because 51274033 - 2²⁵ = 17719601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51273989 and 51274007.

It is not an unprimeable number, because it can be changed into a prime (51274043) 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, 73110 + ... + 73807.

It is an arithmetic number, because the mean of its divisors is an integer number (12855325).

Almost surely, 2^51274033 is an apocalyptic number.

It is an amenable number.

51274033 is a deficient number, since it is larger than the sum of its proper divisors (147267).

51274033 is a wasteful number, since it uses less digits than its factorization.

51274033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147266.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 51274033 is about 7160.5888724322. The cubic root of 51274033 is about 371.5059948421.

The spelling of 51274033 in words is "fifty-one million, two hundred seventy-four thousand, thirty-three".