51444356 has 24 divisors (see below), whose sum is σ = 92864856. Its totient is φ = 24917760.

The previous prime is 51444269. The next prime is 51444377. The reversal of 51444356 is 65344415.

It can be written as a sum of positive squares in 4 ways, for example, as 28729600 + 22714756 = 5360^2 + 4766^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40970 + ... + 42206.

It is an arithmetic number, because the mean of its divisors is an integer number (3869369).

Almost surely, 2^51444356 is an apocalyptic number.

It is an amenable number.

51444356 is a deficient number, since it is larger than the sum of its proper divisors (41420500).

51444356 is a wasteful number, since it uses less digits than its factorization.

51444356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559 (or 1557 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 51444356 is about 7172.4720982378. The cubic root of 51444356 is about 371.9168986146.

The spelling of 51444356 in words is "fifty-one million, four hundred forty-four thousand, three hundred fifty-six".