51526733 has 4 divisors (see below), whose sum is σ = 51872700. Its totient is φ = 51180768.

The previous prime is 51526703. The next prime is 51526751. The reversal of 51526733 is 33762515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33762515 = 5 ⋅6752503.

It can be written as a sum of positive squares in 2 ways, for example, as 28697449 + 22829284 = 5357^2 + 4778^2 .

It is a cyclic number.

It is not a de Polignac number, because 51526733 - 2¹⁰ = 51525709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51526733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51526703) 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, 172760 + ... + 173057.

It is an arithmetic number, because the mean of its divisors is an integer number (12968175).

Almost surely, 2^51526733 is an apocalyptic number.

It is an amenable number.

51526733 is a deficient number, since it is larger than the sum of its proper divisors (345967).

51526733 is a wasteful number, since it uses less digits than its factorization.

51526733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345966.

The product of its digits is 18900, while the sum is 32.

The square root of 51526733 is about 7178.2123819235. The cubic root of 51526733 is about 372.1153075508.

The spelling of 51526733 in words is "fifty-one million, five hundred twenty-six thousand, seven hundred thirty-three".