51839895 has 16 divisors (see below), whose sum is σ = 83721600. Its totient is φ = 27388704.

The previous prime is 51839881. The next prime is 51839899. The reversal of 51839895 is 59893815.

51839895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51839895 - 2⁹ = 51839383 is a prime.

It is a super-2 number, since 2×51839895² = 5374749427222050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51839899) 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 15 ways as a sum of consecutive naturals, for example, 14545 + ... + 17754.

It is an arithmetic number, because the mean of its divisors is an integer number (5232600).

Almost surely, 2^51839895 is an apocalyptic number.

51839895 is a deficient number, since it is larger than the sum of its proper divisors (31881705).

51839895 is a wasteful number, since it uses less digits than its factorization.

51839895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32414.

The product of its digits is 388800, while the sum is 48.

The square root of 51839895 is about 7199.9927083296. The cubic root of 51839895 is about 372.8676489709.

The spelling of 51839895 in words is "fifty-one million, eight hundred thirty-nine thousand, eight hundred ninety-five".