20537422 has 8 divisors (see below), whose sum is σ = 31124016. Its totient is φ = 10162752.

The previous prime is 20537401. The next prime is 20537431. The reversal of 20537422 is 22473502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 52738 + ... + 53125.

It is an arithmetic number, because the mean of its divisors is an integer number (3890502).

Almost surely, 2^20537422 is an apocalyptic number.

20537422 is a deficient number, since it is larger than the sum of its proper divisors (10586594).

20537422 is a wasteful number, since it uses less digits than its factorization.

20537422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105962.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20537422 is about 4531.8232533937. The cubic root of 20537422 is about 273.8516166053.

The spelling of 20537422 in words is "twenty million, five hundred thirty-seven thousand, four hundred twenty-two".