20542822 has 8 divisors (see below), whose sum is σ = 31010976. Its totient is φ = 10205832.

The previous prime is 20542813. The next prime is 20542831. The reversal of 20542822 is 22824502.

It is an interprime number because it is at equal distance from previous prime (20542813) and next prime (20542831).

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32398 + ... + 33025.

It is an arithmetic number, because the mean of its divisors is an integer number (3876372).

Almost surely, 2^20542822 is an apocalyptic number.

20542822 is a deficient number, since it is larger than the sum of its proper divisors (10468154).

20542822 is a wasteful number, since it uses less digits than its factorization.

20542822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65582.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 20542822 is about 4532.4190009310. The cubic root of 20542822 is about 273.8756161955.

The spelling of 20542822 in words is "twenty million, five hundred forty-two thousand, eight hundred twenty-two".