53641184021 has 4 divisors (see below), whose sum is σ = 53677951200. Its totient is φ = 53604416844.

The previous prime is 53641183987. The next prime is 53641184027. The reversal of 53641184021 is 12048114635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53641184021 - 2⁶ = 53641183957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53641184027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18381401 + ... + 18384318.

It is an arithmetic number, because the mean of its divisors is an integer number (13419487800).

Almost surely, 2^53641184021 is an apocalyptic number.

It is an amenable number.

53641184021 is a deficient number, since it is larger than the sum of its proper divisors (36767179).

53641184021 is a wasteful number, since it uses less digits than its factorization.

53641184021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36767178.

The product of its (nonzero) digits is 23040, while the sum is 35.

Adding to 53641184021 its reverse (12048114635), we get a palindrome (65689298656).

The spelling of 53641184021 in words is "fifty-three billion, six hundred forty-one million, one hundred eighty-four thousand, twenty-one".