51338562 has 16 divisors (see below), whose sum is σ = 112011552. Its totient is φ = 15557120.

The previous prime is 51338561. The next prime is 51338563. The reversal of 51338562 is 26583315.

51338562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51338561) and next prime (51338563).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (51338561) 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 7 ways as a sum of consecutive naturals, for example, 388863 + ... + 388994.

It is an arithmetic number, because the mean of its divisors is an integer number (7000722).

Almost surely, 2^51338562 is an apocalyptic number.

51338562 is an abundant number, since it is smaller than the sum of its proper divisors (60672990).

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

51338562 is a wasteful number, since it uses less digits than its factorization.

51338562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777873.

The product of its digits is 21600, while the sum is 33.

The square root of 51338562 is about 7165.0933001602. The cubic root of 51338562 is about 371.6617777939.

It can be divided in two parts, 5133 and 8562, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 51338562 in words is "fifty-one million, three hundred thirty-eight thousand, five hundred sixty-two".