20554196 has 12 divisors (see below), whose sum is σ = 38736852. Its totient is φ = 9486528.

The previous prime is 20554189. The next prime is 20554201. The reversal of 20554196 is 69145502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 929296 + 19624900 = 964^2 + 4430^2 .

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, 197585 + ... + 197688.

It is an arithmetic number, because the mean of its divisors is an integer number (3228071).

Almost surely, 2^20554196 is an apocalyptic number.

20554196 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20554196 is a deficient number, since it is larger than the sum of its proper divisors (18182656).

20554196 is a wasteful number, since it uses less digits than its factorization.

20554196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395290 (or 395288 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 20554196 is about 4533.6735656639. The cubic root of 20554196 is about 273.9261526883.

Adding to 20554196 its reverse (69145502), we get a palindrome (89699698).

The spelling of 20554196 in words is "twenty million, five hundred fifty-four thousand, one hundred ninety-six".