51849667 has 4 divisors (see below), whose sum is σ = 52580016. Its totient is φ = 51119320.

The previous prime is 51849653. The next prime is 51849671. The reversal of 51849667 is 76694815.

51849667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51849667 - 2²³ = 43461059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51849607) 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, 365068 + ... + 365209.

It is an arithmetic number, because the mean of its divisors is an integer number (13145004).

Almost surely, 2^51849667 is an apocalyptic number.

51849667 is a deficient number, since it is larger than the sum of its proper divisors (730349).

51849667 is an equidigital number, since it uses as much as digits as its factorization.

51849667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730348.

The product of its digits is 362880, while the sum is 46.

The square root of 51849667 is about 7200.6712881508. The cubic root of 51849667 is about 372.8910764473.

The spelling of 51849667 in words is "fifty-one million, eight hundred forty-nine thousand, six hundred sixty-seven".