42550544 has 20 divisors (see below), whose sum is σ = 83370780. Its totient is φ = 21035520.

The previous prime is 42550537. The next prime is 42550549. The reversal of 42550544 is 44505524.

It can be written as a sum of positive squares in 2 ways, for example, as 6310144 + 36240400 = 2512^2 + 6020^2 .

It is not an unprimeable number, because it can be changed into a prime (42550549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13517 + ... + 16364.

It is an arithmetic number, because the mean of its divisors is an integer number (4168539).

Almost surely, 2^42550544 is an apocalyptic number.

It is an amenable number.

42550544 is a deficient number, since it is larger than the sum of its proper divisors (40820236).

42550544 is a wasteful number, since it uses less digits than its factorization.

42550544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29978 (or 29972 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 42550544 is about 6523.0778011610. The cubic root of 42550544 is about 349.1148900758.

The spelling of 42550544 in words is "forty-two million, five hundred fifty thousand, five hundred forty-four".