555485406 has 64 divisors (see below), whose sum is σ = 1346526720. Its totient is φ = 149230080.

The previous prime is 555485383. The next prime is 555485407. The reversal of 555485406 is 604584555.

555485406 is nontrivially palindromic in base 13.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555485407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106786 + ... + 111866.

It is an arithmetic number, because the mean of its divisors is an integer number (21039480).

Almost surely, 2^555485406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555485406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673263360).

555485406 is an abundant number, since it is smaller than the sum of its proper divisors (791041314).

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

555485406 is a wasteful number, since it uses less digits than its factorization.

555485406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5249.

The product of its (nonzero) digits is 480000, while the sum is 42.

The square root of 555485406 is about 23568.7378957805. The cubic root of 555485406 is about 822.0360892509.

The spelling of 555485406 in words is "five hundred fifty-five million, four hundred eighty-five thousand, four hundred six".