20356054 has 4 divisors (see below), whose sum is σ = 30534084. Its totient is φ = 10178026.

The previous prime is 20356051. The next prime is 20356069. The reversal of 20356054 is 45065302.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20356051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5089012 + ... + 5089015.

It is an arithmetic number, because the mean of its divisors is an integer number (7633521).

Almost surely, 2^20356054 is an apocalyptic number.

20356054 is a deficient number, since it is larger than the sum of its proper divisors (10178030).

20356054 is a wasteful number, since it uses less digits than its factorization.

20356054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10178029.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 20356054 is about 4511.7683894455. The cubic root of 20356054 is about 273.0430949871.

The spelling of 20356054 in words is "twenty million, three hundred fifty-six thousand, fifty-four".