53642000321 has 16 divisors (see below), whose sum is σ = 68297510400. Its totient is φ = 40978502208.

The previous prime is 53642000303. The next prime is 53642000323. The reversal of 53642000321 is 12300024635.

It is a de Polignac number, because none of the positive numbers 2^k-53642000321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53642000323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10160681 + ... + 10165958.

It is an arithmetic number, because the mean of its divisors is an integer number (4268594400).

Almost surely, 2^53642000321 is an apocalyptic number.

It is an amenable number.

53642000321 is a deficient number, since it is larger than the sum of its proper divisors (14655510079).

53642000321 is a wasteful number, since it uses less digits than its factorization.

53642000321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20326688.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 53642000321 its reverse (12300024635), we get a palindrome (65942024956).

The spelling of 53642000321 in words is "fifty-three billion, six hundred forty-two million, three hundred twenty-one", and thus it is an aban number.