55442010 has 32 divisors (see below), whose sum is σ = 143297280. Its totient is φ = 13647168.

The previous prime is 55441979. The next prime is 55442011. The reversal of 55442010 is 1024455.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55442011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70690 + ... + 71469.

It is an arithmetic number, because the mean of its divisors is an integer number (4478040).

Almost surely, 2^55442010 is an apocalyptic number.

55442010 is an abundant number, since it is smaller than the sum of its proper divisors (87855270).

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

55442010 is a wasteful number, since it uses less digits than its factorization.

55442010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142182.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 55442010 is about 7445.9391617176. The cubic root of 55442010 is about 381.3112824538.

Adding to 55442010 its reverse (1024455), we get a palindrome (56466465).

The spelling of 55442010 in words is "fifty-five million, four hundred forty-two thousand, ten".