55453430544 has 40 divisors (see below), whose sum is σ = 143368636320. Its totient is φ = 18469774848.

The previous prime is 55453430531. The next prime is 55453430603. The reversal of 55453430544 is 44503435455.

It is a junction number, because it is equal to n+sod(n) for n = 55453430496 and 55453430505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398377 + ... + 519240.

It is an arithmetic number, because the mean of its divisors is an integer number (3584215908).

Almost surely, 2^55453430544 is an apocalyptic number.

It is an amenable number.

55453430544 is an abundant number, since it is smaller than the sum of its proper divisors (87915205776).

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

55453430544 is a wasteful number, since it uses less digits than its factorization.

55453430544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918887 (or 918881 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 42.

Adding to 55453430544 its reverse (44503435455), we get a palindrome (99956865999).

The spelling of 55453430544 in words is "fifty-five billion, four hundred fifty-three million, four hundred thirty thousand, five hundred forty-four".