51874446 has 128 divisors (see below), whose sum is σ = 130636800. Its totient is φ = 13547520.

The previous prime is 51874441. The next prime is 51874447. The reversal of 51874446 is 64447815.

51874446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51874441) 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 63 ways as a sum of consecutive naturals, for example, 730591 + ... + 730661.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600).

Almost surely, 2^51874446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51874446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65318400).

51874446 is an abundant number, since it is smaller than the sum of its proper divisors (78762354).

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

51874446 is a wasteful number, since it uses less digits than its factorization.

51874446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154.

The product of its digits is 107520, while the sum is 39.

The square root of 51874446 is about 7202.3916860998. The cubic root of 51874446 is about 372.9504686414.

The spelling of 51874446 in words is "fifty-one million, eight hundred seventy-four thousand, four hundred forty-six".