51004655 has 8 divisors (see below), whose sum is σ = 65913792. Its totient is φ = 37664928.

The previous prime is 51004643. The next prime is 51004661. The reversal of 51004655 is 55640015.

51004655 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 cyclic number.

It is not a de Polignac number, because 51004655 - 2¹² = 51000559 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 392279 + ... + 392408.

It is an arithmetic number, because the mean of its divisors is an integer number (8239224).

Almost surely, 2^51004655 is an apocalyptic number.

51004655 is a deficient number, since it is larger than the sum of its proper divisors (14909137).

51004655 is a wasteful number, since it uses less digits than its factorization.

51004655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784705.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 51004655 is about 7141.7543362958. The cubic root of 51004655 is about 370.8542594203.

The spelling of 51004655 in words is "fifty-one million, four thousand, six hundred fifty-five".