55361143404 has 72 divisors (see below), whose sum is σ = 160087767840. Its totient is φ = 15802083072.

The previous prime is 55361143381. The next prime is 55361143417. The reversal of 55361143404 is 40434116355.

55361143404 is a `hidden beast` number, since 5 + 5 + 3 + 611 + 4 + 34 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153982 + ... + 366650.

It is an arithmetic number, because the mean of its divisors is an integer number (2223441220).

Almost surely, 2^55361143404 is an apocalyptic number.

It is an amenable number.

55361143404 is an abundant number, since it is smaller than the sum of its proper divisors (104726624436).

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

55361143404 is a wasteful number, since it uses less digits than its factorization.

55361143404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213719 (or 213714 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 55361143404 its reverse (40434116355), we get a palindrome (95795259759).

It can be divided in two parts, 55361 and 143404, that added together give a triangular number (198765 = T₆₃₀).

The spelling of 55361143404 in words is "fifty-five billion, three hundred sixty-one million, one hundred forty-three thousand, four hundred four".