20552944 has 10 divisors (see below), whose sum is σ = 39821360. Its totient is φ = 10276464.

The previous prime is 20552941. The next prime is 20552947. The reversal of 20552944 is 44925502.

It is an interprime number because it is at equal distance from previous prime (20552941) and next prime (20552947).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552941) 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 as a sum of consecutive naturals, namely, 642264 + ... + 642295.

It is an arithmetic number, because the mean of its divisors is an integer number (3982136).

Almost surely, 2^20552944 is an apocalyptic number.

It is an amenable number.

20552944 is a deficient number, since it is larger than the sum of its proper divisors (19268416).

20552944 is a wasteful number, since it uses less digits than its factorization.

20552944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284567 (or 1284561 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 20552944 is about 4533.5354856888. The cubic root of 20552944 is about 273.9205907663.

The spelling of 20552944 in words is "twenty million, five hundred fifty-two thousand, nine hundred forty-four".