51017672 has 16 divisors (see below), whose sum is σ = 98244060. Its totient is φ = 24819264.

The previous prime is 51017639. The next prime is 51017677. The reversal of 51017672 is 27671015.

51017672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37283236 + 13734436 = 6106^2 + 3706^2 .

It is not an unprimeable number, because it can be changed into a prime (51017677) 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 3 ways as a sum of consecutive naturals, for example, 85883 + ... + 86474.

Almost surely, 2^51017672 is an apocalyptic number.

It is an amenable number.

51017672 is a deficient number, since it is larger than the sum of its proper divisors (47226388).

51017672 is a wasteful number, since it uses less digits than its factorization.

51017672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172400 (or 172396 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 51017672 is about 7142.6656088606. The cubic root of 51017672 is about 370.8858055559.

Adding to 51017672 its reverse (27671015), we get a palindrome (78688687).

The spelling of 51017672 in words is "fifty-one million, seventeen thousand, six hundred seventy-two".