51849755 has 4 divisors (see below), whose sum is σ = 62219712. Its totient is φ = 41479800.

The previous prime is 51849719. The next prime is 51849761. The reversal of 51849755 is 55794815.

51849755 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, and also an emirpimes, since its reverse is a distinct semiprime: 55794815 = 5 ⋅11158963.

It is not a de Polignac number, because 51849755 - 2¹⁸ = 51587611 is a prime.

It is a Duffinian 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, 5184971 + ... + 5184980.

It is an arithmetic number, because the mean of its divisors is an integer number (15554928).

Almost surely, 2^51849755 is an apocalyptic number.

51849755 is a deficient number, since it is larger than the sum of its proper divisors (10369957).

51849755 is a wasteful number, since it uses less digits than its factorization.

51849755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10369956.

The product of its digits is 252000, while the sum is 44.

The square root of 51849755 is about 7200.6773986897. The cubic root of 51849755 is about 372.8912874058.

The spelling of 51849755 in words is "fifty-one million, eight hundred forty-nine thousand, seven hundred fifty-five".