51652533 has 4 divisors (see below), whose sum is σ = 68870048. Its totient is φ = 34435020.

The previous prime is 51652499. The next prime is 51652547. The reversal of 51652533 is 33525615.

51652533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 51652533 - 2²⁰ = 50603957 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 51652533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51656533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8608753 + ... + 8608758.

It is an arithmetic number, because the mean of its divisors is an integer number (17217512).

Almost surely, 2^51652533 is an apocalyptic number.

It is an amenable number.

51652533 is a deficient number, since it is larger than the sum of its proper divisors (17217515).

51652533 is a wasteful number, since it uses less digits than its factorization.

51652533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17217514.

The product of its digits is 13500, while the sum is 30.

The square root of 51652533 is about 7186.9696673911. The cubic root of 51652533 is about 372.4178952114.

The spelling of 51652533 in words is "fifty-one million, six hundred fifty-two thousand, five hundred thirty-three".