53621101571 has 4 divisors (see below), whose sum is σ = 53624640552. Its totient is φ = 53617562592.

The previous prime is 53621101561. The next prime is 53621101591. The reversal of 53621101571 is 17510112635.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53621101571 - 2⁶ = 53621101507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53621101561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1746665 + ... + 1777098.

It is an arithmetic number, because the mean of its divisors is an integer number (13406160138).

Almost surely, 2^53621101571 is an apocalyptic number.

53621101571 is a deficient number, since it is larger than the sum of its proper divisors (3538981).

53621101571 is a wasteful number, since it uses less digits than its factorization.

53621101571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538980.

The product of its (nonzero) digits is 6300, while the sum is 32.

The spelling of 53621101571 in words is "fifty-three billion, six hundred twenty-one million, one hundred one thousand, five hundred seventy-one".