51236622 has 12 divisors (see below), whose sum is σ = 111012720. Its totient is φ = 17078868.

The previous prime is 51236609. The next prime is 51236641. The reversal of 51236622 is 22663215.

51236622 is a `hidden beast` number, since 5 + 1 + 2 + 36 + 622 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1423222 + ... + 1423257.

It is an arithmetic number, because the mean of its divisors is an integer number (9251060).

Almost surely, 2^51236622 is an apocalyptic number.

51236622 is an abundant number, since it is smaller than the sum of its proper divisors (59776098).

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

51236622 is a wasteful number, since it uses less digits than its factorization.

51236622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846487 (or 2846484 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 51236622 is about 7157.9761106056. The cubic root of 51236622 is about 371.4156190609.

Adding to 51236622 its reverse (22663215), we get a palindrome (73899837).

The spelling of 51236622 in words is "fifty-one million, two hundred thirty-six thousand, six hundred twenty-two".