51163722 has 24 divisors (see below), whose sum is σ = 113434464. Its totient is φ = 16657704.

The previous prime is 51163703. The next prime is 51163741. The reversal of 51163722 is 22736115.

It is a happy number.

51163722 is a `hidden beast` number, since 5 + 1 + 1 + 637 + 22 = 666.

It is an interprime number because it is at equal distance from previous prime (51163703) and next prime (51163741).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 32278 + ... + 33825.

It is an arithmetic number, because the mean of its divisors is an integer number (4726436).

Almost surely, 2^51163722 is an apocalyptic number.

51163722 is an abundant number, since it is smaller than the sum of its proper divisors (62270742).

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

51163722 is a wasteful number, since it uses less digits than its factorization.

51163722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66154 (or 66151 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 51163722 is about 7152.8820764780. The cubic root of 51163722 is about 371.2393841130.

Adding to 51163722 its reverse (22736115), we get a palindrome (73899837).

The spelling of 51163722 in words is "fifty-one million, one hundred sixty-three thousand, seven hundred twenty-two".