51833240 has 32 divisors (see below), whose sum is σ = 120389760. Its totient is φ = 20064000.

The previous prime is 51833227. The next prime is 51833281. The reversal of 51833240 is 4233815.

51833240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 19661 + ... + 22140.

It is an arithmetic number, because the mean of its divisors is an integer number (3762180).

Almost surely, 2^51833240 is an apocalyptic number.

It is an amenable number.

51833240 is an abundant number, since it is smaller than the sum of its proper divisors (68556520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51833240 is a wasteful number, since it uses less digits than its factorization.

51833240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41843 (or 41839 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 51833240 is about 7199.5305402505. The cubic root of 51833240 is about 372.8516925317.

The spelling of 51833240 in words is "fifty-one million, eight hundred thirty-three thousand, two hundred forty".