55441430 has 64 divisors (see below), whose sum is σ = 117573120. Its totient is φ = 18604800.

The previous prime is 55441391. The next prime is 55441439. The reversal of 55441430 is 3414455.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55441430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55441439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85367 + ... + 86013.

It is an arithmetic number, because the mean of its divisors is an integer number (1837080).

Almost surely, 2^55441430 is an apocalyptic number.

55441430 is an abundant number, since it is smaller than the sum of its proper divisors (62131690).

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

55441430 is a wasteful number, since it uses less digits than its factorization.

55441430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 55441430 is about 7445.9002142118. The cubic root of 55441430 is about 381.3099527683.

Adding to 55441430 its reverse (3414455), we get a palindrome (58855885).

The spelling of 55441430 in words is "fifty-five million, four hundred forty-one thousand, four hundred thirty".