53218307653111 has 4 divisors (see below), whose sum is σ = 53218470361000. Its totient is φ = 53218144945224.

The previous prime is 53218307653099. The next prime is 53218307653201. The reversal of 53218307653111 is 11135670381235.

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 53218307653111 - 2²¹ = 53218305555959 is a prime.

It is a super-2 number, since 2×53218307653111² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53218307653711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80862336 + ... + 81517813.

It is an arithmetic number, because the mean of its divisors is an integer number (13304617590250).

Almost surely, 2^{53218307653111} is an apocalyptic number.

53218307653111 is a deficient number, since it is larger than the sum of its proper divisors (162707889).

53218307653111 is a wasteful number, since it uses less digits than its factorization.

53218307653111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162707888.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 53218307653111 in words is "fifty-three trillion, two hundred eighteen billion, three hundred seven million, six hundred fifty-three thousand, one hundred eleven".