555553404 has 168 divisors, whose sum is σ = 1764993888. Its totient is φ = 149299200.

The previous prime is 555553399. The next prime is 555553417. The reversal of 555553404 is 404355555.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 346204 + ... + 347804.

It is an arithmetic number, because the mean of its divisors is an integer number (10505916).

Almost surely, 2^555553404 is an apocalyptic number.

555553404 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555553404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (882496944).

555553404 is an abundant number, since it is smaller than the sum of its proper divisors (1209440484).

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

555553404 is a wasteful number, since it uses less digits than its factorization.

555553404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647 (or 1630 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 36.

The square root of 555553404 is about 23570.1803981217. The cubic root of 555553404 is about 822.0696302037.

The spelling of 555553404 in words is "five hundred fifty-five million, five hundred fifty-three thousand, four hundred four".