553611240 has 512 divisors, whose sum is σ = 2341785600. Its totient is φ = 113218560.

The previous prime is 553611209. The next prime is 553611263. The reversal of 553611240 is 42116355.

553611240 is a `hidden beast` number, since 5 + 5 + 3 + 611 + 2 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4225975 + ... + 4226105.

It is an arithmetic number, because the mean of its divisors is an integer number (4573800).

Almost surely, 2^553611240 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 553611240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1170892800).

553611240 is an abundant number, since it is smaller than the sum of its proper divisors (1788174360).

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

553611240 is a wasteful number, since it uses less digits than its factorization.

553611240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 553611240 is about 23528.9447277178. The cubic root of 553611240 is about 821.1105515820.

Adding to 553611240 its reverse (42116355), we get a palindrome (595727595).

The spelling of 553611240 in words is "five hundred fifty-three million, six hundred eleven thousand, two hundred forty".