20562245 has 8 divisors (see below), whose sum is σ = 26917920. Its totient is φ = 14954320.

The previous prime is 20562229. The next prime is 20562257. The reversal of 20562245 is 54226502.

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

It is not a de Polignac number, because 20562245 - 2⁴ = 20562229 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 186875 + ... + 186984.

It is an arithmetic number, because the mean of its divisors is an integer number (3364740).

Almost surely, 2^20562245 is an apocalyptic number.

It is an amenable number.

20562245 is a deficient number, since it is larger than the sum of its proper divisors (6355675).

20562245 is a wasteful number, since it uses less digits than its factorization.

20562245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373875.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 20562245 is about 4534.5611695069. The cubic root of 20562245 is about 273.9619044129.

Adding to 20562245 its reverse (54226502), we get a palindrome (74788747).

It can be divided in two parts, 20 and 562245, that added together give a palindrome (562265).

The spelling of 20562245 in words is "twenty million, five hundred sixty-two thousand, two hundred forty-five".