20022537 has 8 divisors (see below), whose sum is σ = 26942080. Its totient is φ = 13225680.

The previous prime is 20022529. The next prime is 20022547. The reversal of 20022537 is 73522002.

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

It is not a de Polignac number, because 20022537 - 2³ = 20022529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30289 + ... + 30942.

It is an arithmetic number, because the mean of its divisors is an integer number (3367760).

Almost surely, 2^20022537 is an apocalyptic number.

It is an amenable number.

20022537 is a deficient number, since it is larger than the sum of its proper divisors (6919543).

20022537 is a wasteful number, since it uses less digits than its factorization.

20022537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61343.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 20022537 is about 4474.6549587650. The cubic root of 20022537 is about 271.5436814360.

Adding to 20022537 its reverse (73522002), we get a palindrome (93544539).

The spelling of 20022537 in words is "twenty million, twenty-two thousand, five hundred thirty-seven".