51606022 has 16 divisors (see below), whose sum is σ = 86239440. Its totient is φ = 22996512.

The previous prime is 51606017. The next prime is 51606029. The reversal of 51606022 is 22060615.

It is a junction number, because it is equal to n+sod(n) for n = 51605984 and 51606002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51606029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33468 + ... + 34975.

It is an arithmetic number, because the mean of its divisors is an integer number (5389965).

Almost surely, 2^51606022 is an apocalyptic number.

51606022 is a deficient number, since it is larger than the sum of its proper divisors (34633418).

51606022 is a wasteful number, since it uses less digits than its factorization.

51606022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68487.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 51606022 is about 7183.7331520596. The cubic root of 51606022 is about 372.3060792659.

Adding to 51606022 its reverse (22060615), we get a palindrome (73666637).

The spelling of 51606022 in words is "fifty-one million, six hundred six thousand, twenty-two".