20552544 has 36 divisors (see below), whose sum is σ = 58447116. Its totient is φ = 6850752.

The previous prime is 20552533. The next prime is 20552549. The reversal of 20552544 is 44525502.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35394 + ... + 35969.

It is an arithmetic number, because the mean of its divisors is an integer number (1623531).

Almost surely, 2^20552544 is an apocalyptic number.

20552544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20552544 is an abundant number, since it is smaller than the sum of its proper divisors (37894572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20552544 is a wasteful number, since it uses less digits than its factorization.

20552544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71379 (or 71368 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 20552544 is about 4533.4913697944. The cubic root of 20552544 is about 273.9188137468.

The spelling of 20552544 in words is "twenty million, five hundred fifty-two thousand, five hundred forty-four".