51452638 has 8 divisors (see below), whose sum is σ = 77235840. Its totient is φ = 25707360.

The previous prime is 51452623. The next prime is 51452647. The reversal of 51452638 is 83625415.

51452638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

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, 5803 + ... + 11686.

It is an arithmetic number, because the mean of its divisors is an integer number (9654480).

Almost surely, 2^51452638 is an apocalyptic number.

51452638 is a deficient number, since it is larger than the sum of its proper divisors (25783202).

51452638 is a wasteful number, since it uses less digits than its factorization.

51452638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18962.

The product of its digits is 28800, while the sum is 34.

The square root of 51452638 is about 7173.0494212713. The cubic root of 51452638 is about 371.9368557794.

The spelling of 51452638 in words is "fifty-one million, four hundred fifty-two thousand, six hundred thirty-eight".