51827159 has 4 divisors (see below), whose sum is σ = 51958104. Its totient is φ = 51696216.

The previous prime is 51827143. The next prime is 51827189. The reversal of 51827159 is 95172815.

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 51827159 - 2⁴ = 51827143 is a prime.

It is a super-2 number, since 2×51827159² = 5372108820022562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51827129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64877 + ... + 65670.

It is an arithmetic number, because the mean of its divisors is an integer number (12989526).

Almost surely, 2^51827159 is an apocalyptic number.

51827159 is a deficient number, since it is larger than the sum of its proper divisors (130945).

51827159 is a wasteful number, since it uses less digits than its factorization.

51827159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130944.

The product of its digits is 25200, while the sum is 38.

The square root of 51827159 is about 7199.1082086603. The cubic root of 51827159 is about 372.8371111562.

The spelling of 51827159 in words is "fifty-one million, eight hundred twenty-seven thousand, one hundred fifty-nine".