553211604 has 36 divisors (see below), whose sum is σ = 1525524000. Its totient is φ = 167639760.

The previous prime is 553211591. The next prime is 553211609. The reversal of 553211604 is 406112355.

553211604 is a `hidden beast` number, since 5 + 53 + 2 + 1 + 1 + 604 = 666.

553211604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553211609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 698104 + ... + 698895.

Almost surely, 2^553211604 is an apocalyptic number.

It is an amenable number.

553211604 is an abundant number, since it is smaller than the sum of its proper divisors (972312396).

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

553211604 is a wasteful number, since it uses less digits than its factorization.

553211604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397020 (or 1397015 counting only the distinct ones).

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

The square root of 553211604 is about 23520.4507609867. The cubic root of 553211604 is about 820.9129253395.

Adding to 553211604 its reverse (406112355), we get a palindrome (959323959).

The spelling of 553211604 in words is "five hundred fifty-three million, two hundred eleven thousand, six hundred four".