51444430 has 32 divisors (see below), whose sum is σ = 95798304. Its totient is φ = 19875456.

The previous prime is 51444427. The next prime is 51444443. The reversal of 51444430 is 3444415.

It is a junction number, because it is equal to n+sod(n) for n = 51444395 and 51444404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59884 + ... + 60736.

It is an arithmetic number, because the mean of its divisors is an integer number (2993697).

Almost surely, 2^51444430 is an apocalyptic number.

51444430 is a deficient number, since it is larger than the sum of its proper divisors (44353874).

51444430 is a wasteful number, since it uses less digits than its factorization.

51444430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 51444430 is about 7172.4772568479. The cubic root of 51444430 is about 371.9170769422.

Adding to 51444430 its reverse (3444415), we get a palindrome (54888845).

It can be divided in two parts, 514 and 44430, that added together give a palindrome (44944).

The spelling of 51444430 in words is "fifty-one million, four hundred forty-four thousand, four hundred thirty".