53821027356655 has 24 divisors (see below), whose sum is σ = 69953786353728. Its totient is φ = 39734360055936.

The previous prime is 53821027356589. The next prime is 53821027356671. The reversal of 53821027356655 is 55665372012835.

It is a de Polignac number, because none of the positive numbers 2^k-53821027356655 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53821027356655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5099872 + ... + 11560741.

It is an arithmetic number, because the mean of its divisors is an integer number (2914741098072).

Almost surely, 2^{53821027356655} is an apocalyptic number.

53821027356655 is a deficient number, since it is larger than the sum of its proper divisors (16132758997073).

53821027356655 is a wasteful number, since it uses less digits than its factorization.

53821027356655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16664467 (or 16664454 counting only the distinct ones).

The product of its (nonzero) digits is 45360000, while the sum is 58.

The spelling of 53821027356655 in words is "fifty-three trillion, eight hundred twenty-one billion, twenty-seven million, three hundred fifty-six thousand, six hundred fifty-five".