53254421604 has 36 divisors (see below), whose sum is σ = 138253599484. Its totient is φ = 17271703872.

The previous prime is 53254421593. The next prime is 53254421611. The reversal of 53254421604 is 40612445235.

53254421604 is a `hidden beast` number, since 5 + 3 + 2 + 5 + 4 + 42 + 1 + 604 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32833440000 + 20420981604 = 181200^2 + 142902^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 19989067 + ... + 19991730.

Almost surely, 2^53254421604 is an apocalyptic number.

It is an amenable number.

53254421604 is an abundant number, since it is smaller than the sum of its proper divisors (84999177880).

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

53254421604 is a wasteful number, since it uses less digits than its factorization.

53254421604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39980844 (or 39980839 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 53254421604 its reverse (40612445235), we get a palindrome (93866866839).

The spelling of 53254421604 in words is "fifty-three billion, two hundred fifty-four million, four hundred twenty-one thousand, six hundred four".