51097722 has 32 divisors (see below), whose sum is σ = 110557440. Its totient is φ = 15650880.

The previous prime is 51097693. The next prime is 51097741. The reversal of 51097722 is 22779015.

51097722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51097722² = 5221954387178568, which contains 22 as substring.

It is an unprimeable number.

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, 17272 + ... + 20012.

It is an arithmetic number, because the mean of its divisors is an integer number (3454920).

Almost surely, 2^51097722 is an apocalyptic number.

51097722 is an abundant number, since it is smaller than the sum of its proper divisors (59459718).

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

51097722 is a wasteful number, since it uses less digits than its factorization.

51097722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 51097722 is about 7148.2670627223. The cubic root of 51097722 is about 371.0796853946.

The spelling of 51097722 in words is "fifty-one million, ninety-seven thousand, seven hundred twenty-two".