555031040 has 80 divisors (see below), whose sum is σ = 1400937120. Its totient is φ = 210309120.

The previous prime is 555031039. The next prime is 555031049. The reversal of 555031040 is 40130555.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 555030997 and 555031015.

It is not an unprimeable number, because it can be changed into a prime (555031049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42935 + ... + 54345.

It is an arithmetic number, because the mean of its divisors is an integer number (17511714).

Almost surely, 2^555031040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555031040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700468560).

555031040 is an abundant number, since it is smaller than the sum of its proper divisors (845906080).

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

555031040 is a wasteful number, since it uses less digits than its factorization.

555031040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11453 (or 11437 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 555031040 is about 23559.0967568793. The cubic root of 555031040 is about 821.8118966620.

Adding to 555031040 its reverse (40130555), we get a palindrome (595161595).

The spelling of 555031040 in words is "five hundred fifty-five million, thirty-one thousand, forty".