51033245 has 8 divisors (see below), whose sum is σ = 61651800. Its totient is φ = 40552000.

The previous prime is 51033239. The next prime is 51033247. The reversal of 51033245 is 54233015.

51033245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2229049 + 48804196 = 1493^2 + 6986^2 .

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

It is not a de Polignac number, because 51033245 - 2¹⁰ = 51032221 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51033245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51033247) 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 7 ways as a sum of consecutive naturals, for example, 33506 + ... + 34995.

It is an arithmetic number, because the mean of its divisors is an integer number (7706475).

Almost surely, 2^51033245 is an apocalyptic number.

It is an amenable number.

51033245 is a deficient number, since it is larger than the sum of its proper divisors (10618555).

51033245 is a wasteful number, since it uses less digits than its factorization.

51033245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68655.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 51033245 is about 7143.7556649146. The cubic root of 51033245 is about 370.9235389977.

The spelling of 51033245 in words is "fifty-one million, thirty-three thousand, two hundred forty-five".