20722054 has 8 divisors (see below), whose sum is σ = 31112568. Its totient is φ = 10351200.

The previous prime is 20722007. The next prime is 20722073. The reversal of 20722054 is 45022702.

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, 1912 + ... + 6715.

It is an arithmetic number, because the mean of its divisors is an integer number (3889071).

Almost surely, 2^20722054 is an apocalyptic number.

20722054 is a deficient number, since it is larger than the sum of its proper divisors (10390514).

20722054 is a wasteful number, since it uses less digits than its factorization.

20722054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9830.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 20722054 is about 4552.1482840523. The cubic root of 20722054 is about 274.6698141809.

Adding to 20722054 its reverse (45022702), we get a palindrome (65744756).

The spelling of 20722054 in words is "twenty million, seven hundred twenty-two thousand, fifty-four".