52661895417 has 24 divisors (see below), whose sum is σ = 78922587744. Its totient is φ = 35090972928.

The previous prime is 52661895379. The next prime is 52661895439. The reversal of 52661895417 is 71459816625.

It is a happy number.

52661895417 is a `hidden beast` number, since 5 + 2 + 6 + 618 + 9 + 5 + 4 + 17 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-52661895417 is a prime.

It is a super-2 number, since 2×52661895417² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52661895487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 462178 + ... + 564740.

It is an arithmetic number, because the mean of its divisors is an integer number (3288441156).

Almost surely, 2^52661895417 is an apocalyptic number.

It is an amenable number.

52661895417 is a deficient number, since it is larger than the sum of its proper divisors (26260692327).

52661895417 is a wasteful number, since it uses less digits than its factorization.

52661895417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104691 (or 104679 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The spelling of 52661895417 in words is "fifty-two billion, six hundred sixty-one million, eight hundred ninety-five thousand, four hundred seventeen".