51836562 has 18 divisors (see below), whose sum is σ = 112378773. Its totient is φ = 17268672.

The previous prime is 51836531. The next prime is 51836563. The reversal of 51836562 is 26563815.

It can be written as a sum of positive squares in 2 ways, for example, as 35748441 + 16088121 = 5979^2 + 4011^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5091.

It is not an unprimeable number, because it can be changed into a prime (51836563) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 29698 + ... + 31394.

Almost surely, 2^51836562 is an apocalyptic number.

51836562 is an abundant number, since it is smaller than the sum of its proper divisors (60542211).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51836562 is an equidigital number, since it uses as much as digits as its factorization.

51836562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402 (or 1702 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 51836562 is about 7199.7612460414. The cubic root of 51836562 is about 372.8596577349.

The spelling of 51836562 in words is "fifty-one million, eight hundred thirty-six thousand, five hundred sixty-two".