52215661655 has 8 divisors (see below), whose sum is σ = 62677303200. Its totient is φ = 41760189856.

The previous prime is 52215661651. The next prime is 52215661669. The reversal of 52215661655 is 55616651225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52215661655 - 2² = 52215661651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52215661651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1523795 + ... + 1557684.

It is an arithmetic number, because the mean of its divisors is an integer number (7834662900).

Almost surely, 2^52215661655 is an apocalyptic number.

52215661655 is a deficient number, since it is larger than the sum of its proper divisors (10461641545).

52215661655 is a wasteful number, since it uses less digits than its factorization.

52215661655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084873.

The product of its digits is 540000, while the sum is 44.

The spelling of 52215661655 in words is "fifty-two billion, two hundred fifteen million, six hundred sixty-one thousand, six hundred fifty-five".