51836842 has 8 divisors (see below), whose sum is σ = 82329156. Its totient is φ = 24393792.

The previous prime is 51836821. The next prime is 51836843. The reversal of 51836842 is 24863815.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44102881 + 7733961 = 6641^2 + 2781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51836843) 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, 762273 + ... + 762340.

Almost surely, 2^51836842 is an apocalyptic number.

51836842 is a deficient number, since it is larger than the sum of its proper divisors (30492314).

51836842 is a wasteful number, since it uses less digits than its factorization.

51836842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524632.

The product of its digits is 46080, while the sum is 37.

The square root of 51836842 is about 7199.7806911044. The cubic root of 51836842 is about 372.8603290790.

The spelling of 51836842 in words is "fifty-one million, eight hundred thirty-six thousand, eight hundred forty-two".