51836242 has 16 divisors (see below), whose sum is σ = 79801920. Its totient is φ = 25239312.

The previous prime is 51836221. The next prime is 51836249. The reversal of 51836242 is 24263815.

It is not an unprimeable number, because it can be changed into a prime (51836249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37068 + ... + 38440.

It is an arithmetic number, because the mean of its divisors is an integer number (4987620).

Almost surely, 2^51836242 is an apocalyptic number.

51836242 is a deficient number, since it is larger than the sum of its proper divisors (27965678).

51836242 is a wasteful number, since it uses less digits than its factorization.

51836242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857.

The product of its digits is 11520, while the sum is 31.

The square root of 51836242 is about 7199.7390230480. The cubic root of 51836242 is about 372.8588904815.

The spelling of 51836242 in words is "fifty-one million, eight hundred thirty-six thousand, two hundred forty-two".