51621162 has 32 divisors (see below), whose sum is σ = 104799744. Its totient is φ = 16950000.

The previous prime is 51621161. The next prime is 51621209. The reversal of 51621162 is 26112615.

51621162 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51621161) 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 15 ways as a sum of consecutive naturals, for example, 205537 + ... + 205787.

It is an arithmetic number, because the mean of its divisors is an integer number (3274992).

Almost surely, 2^51621162 is an apocalyptic number.

51621162 is an abundant number, since it is smaller than the sum of its proper divisors (53178582).

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

51621162 is a wasteful number, since it uses less digits than its factorization.

51621162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634.

The product of its digits is 720, while the sum is 24.

The square root of 51621162 is about 7184.7868444373. The cubic root of 51621162 is about 372.3424843383.

Adding to 51621162 its reverse (26112615), we get a palindrome (77733777).

The spelling of 51621162 in words is "fifty-one million, six hundred twenty-one thousand, one hundred sixty-two".