555532640 has 96 divisors (see below), whose sum is σ = 1487898720. Its totient is φ = 194310144.

The previous prime is 555532633. The next prime is 555532651. The reversal of 555532640 is 46235555.

It is a self number, because there is not a number n which added to its sum of digits gives 555532640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32492 + ... + 46548.

It is an arithmetic number, because the mean of its divisors is an integer number (15498945).

Almost surely, 2^555532640 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 555532640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743949360).

555532640 is an abundant number, since it is smaller than the sum of its proper divisors (932366080).

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

555532640 is a wasteful number, since it uses less digits than its factorization.

555532640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14104 (or 14096 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The square root of 555532640 is about 23569.7399221969. The cubic root of 555532640 is about 822.0593883641.

The spelling of 555532640 in words is "five hundred fifty-five million, five hundred thirty-two thousand, six hundred forty".