51054533 has 4 divisors (see below), whose sum is σ = 51094560. Its totient is φ = 51014508.

The previous prime is 51054517. The next prime is 51054541. The reversal of 51054533 is 33545015.

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 a cyclic number.

It is not a de Polignac number, because 51054533 - 2⁴ = 51054517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51054593) 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, 18035 + ... + 20672.

It is an arithmetic number, because the mean of its divisors is an integer number (12773640).

Almost surely, 2^51054533 is an apocalyptic number.

It is an amenable number.

51054533 is a deficient number, since it is larger than the sum of its proper divisors (40027).

51054533 is a wasteful number, since it uses less digits than its factorization.

51054533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40026.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 51054533 is about 7145.2454821371. The cubic root of 51054533 is about 370.9751074906.

Adding to 51054533 its reverse (33545015), we get a palindrome (84599548).

The spelling of 51054533 in words is "fifty-one million, fifty-four thousand, five hundred thirty-three".