20552492 has 12 divisors (see below), whose sum is σ = 36022560. Its totient is φ = 10260336.

The previous prime is 20552491. The next prime is 20552513. The reversal of 20552492 is 29425502.

It is not an unprimeable number, because it can be changed into a prime (20552491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788 + ... + 6459.

It is an arithmetic number, because the mean of its divisors is an integer number (3001880).

Almost surely, 2^20552492 is an apocalyptic number.

It is an amenable number.

20552492 is a deficient number, since it is larger than the sum of its proper divisors (15470068).

20552492 is a wasteful number, since it uses less digits than its factorization.

20552492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7960 (or 7958 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 20552492 is about 4533.4856346966. The cubic root of 20552492 is about 273.9185827326.

Adding to 20552492 its reverse (29425502), we get a palindrome (49977994).

The spelling of 20552492 in words is "twenty million, five hundred fifty-two thousand, four hundred ninety-two".