55400443024 has 20 divisors (see below), whose sum is σ = 109098005500. Its totient is φ = 27246119040.

The previous prime is 55400442971. The next prime is 55400443039. The reversal of 55400443024 is 42034400455.

55400443024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 23740646400 + 31659796624 = 154080^2 + 177932^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28380399 + ... + 28382350.

It is an arithmetic number, because the mean of its divisors is an integer number (5454900275).

Almost surely, 2^55400443024 is an apocalyptic number.

It is an amenable number.

55400443024 is a deficient number, since it is larger than the sum of its proper divisors (53697562476).

55400443024 is a wasteful number, since it uses less digits than its factorization.

55400443024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56762818 (or 56762812 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 55400443024 its reverse (42034400455), we get a palindrome (97434843479).

The spelling of 55400443024 in words is "fifty-five billion, four hundred million, four hundred forty-three thousand, twenty-four".