51144671 has 8 divisors (see below), whose sum is σ = 52545024. Its totient is φ = 49751680.

The previous prime is 51144659. The next prime is 51144707. The reversal of 51144671 is 17644115.

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

It is a cyclic number.

It is not a de Polignac number, because 51144671 - 2⁶ = 51144607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51146671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14075 + ... + 17331.

It is an arithmetic number, because the mean of its divisors is an integer number (6568128).

Almost surely, 2^51144671 is an apocalyptic number.

51144671 is a deficient number, since it is larger than the sum of its proper divisors (1400353).

51144671 is a wasteful number, since it uses less digits than its factorization.

51144671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681.

The product of its digits is 3360, while the sum is 29.

The square root of 51144671 is about 7151.5502515189. The cubic root of 51144671 is about 371.1933009429.

Adding to 51144671 its reverse (17644115), we get a palindrome (68788786).

It can be divided in two parts, 51144 and 671, that added together give a palindrome (51815).

The spelling of 51144671 in words is "fifty-one million, one hundred forty-four thousand, six hundred seventy-one".