51533005 has 8 divisors (see below), whose sum is σ = 63834624. Its totient is φ = 39896400.

The previous prime is 51533003. The next prime is 51533017. The reversal of 51533005 is 50033515.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51533005 - 2¹ = 51533003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51533003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166081 + ... + 166390.

It is an arithmetic number, because the mean of its divisors is an integer number (7979328).

Almost surely, 2^51533005 is an apocalyptic number.

It is an amenable number.

51533005 is a deficient number, since it is larger than the sum of its proper divisors (12301619).

51533005 is a wasteful number, since it uses less digits than its factorization.

51533005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332507.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 51533005 is about 7178.6492462022. The cubic root of 51533005 is about 372.1304052964.

The spelling of 51533005 in words is "fifty-one million, five hundred thirty-three thousand, five".