55344401020 has 24 divisors (see below), whose sum is σ = 116328088800. Its totient is φ = 22117789632.

The previous prime is 55344400987. The next prime is 55344401027. The reversal of 55344401020 is 2010444355.

It is a self number, because there is not a number n which added to its sum of digits gives 55344401020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55344401027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1225440 + ... + 1269799.

It is an arithmetic number, because the mean of its divisors is an integer number (4847003700).

Almost surely, 2^55344401020 is an apocalyptic number.

It is an amenable number.

55344401020 is an abundant number, since it is smaller than the sum of its proper divisors (60983687780).

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

55344401020 is a wasteful number, since it uses less digits than its factorization.

55344401020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496357 (or 2496355 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 55344401020 its reverse (2010444355), we get a palindrome (57354845375).

The spelling of 55344401020 in words is "fifty-five billion, three hundred forty-four million, four hundred one thousand, twenty".