555562240 has 144 divisors (see below), whose sum is σ = 1409280768. Its totient is φ = 209420288.

The previous prime is 555562237. The next prime is 555562247. The reversal of 555562240 is 42265555.

It is a junction number, because it is equal to n+sod(n) for n = 555562196 and 555562205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555562247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3326637 + ... + 3326803.

It is an arithmetic number, because the mean of its divisors is an integer number (9786672).

Almost surely, 2^555562240 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 555562240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704640384).

555562240 is an abundant number, since it is smaller than the sum of its proper divisors (853718528).

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

555562240 is a wasteful number, since it uses less digits than its factorization.

555562240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 555562240 is about 23570.3678376049. The cubic root of 555562240 is about 822.0739884818.

The spelling of 555562240 in words is "five hundred fifty-five million, five hundred sixty-two thousand, two hundred forty".