55575643244 has 48 divisors (see below), whose sum is σ = 109103772960. Its totient is φ = 24547944960.

The previous prime is 55575643241. The next prime is 55575643247. The reversal of 55575643244 is 44234657555.

It is an interprime number because it is at equal distance from previous prime (55575643241) and next prime (55575643247).

It is a junction number, because it is equal to n+sod(n) for n = 55575643192 and 55575643201.

It is not an unprimeable number, because it can be changed into a prime (55575643241) 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, 1295954 + ... + 1338150.

It is an arithmetic number, because the mean of its divisors is an integer number (2272995270).

Almost surely, 2^55575643244 is an apocalyptic number.

It is an amenable number.

55575643244 is a deficient number, since it is larger than the sum of its proper divisors (53528129716).

55575643244 is a wasteful number, since it uses less digits than its factorization.

55575643244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43058 (or 43056 counting only the distinct ones).

The product of its digits is 10080000, while the sum is 50.

The spelling of 55575643244 in words is "fifty-five billion, five hundred seventy-five million, six hundred forty-three thousand, two hundred forty-four".