52217355465 has 48 divisors (see below), whose sum is σ = 104546422656. Its totient is φ = 23828236800.

The previous prime is 52217355409. The next prime is 52217355527. The reversal of 52217355465 is 56455371225.

It is a happy number.

52217355465 is a `hidden beast` number, since 5 + 2 + 21 + 73 + 554 + 6 + 5 = 666.

It is not a de Polignac number, because 52217355465 - 2⁶ = 52217355401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 52217355465.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3094221 + ... + 3111050.

It is an arithmetic number, because the mean of its divisors is an integer number (2178050472).

Almost surely, 2^52217355465 is an apocalyptic number.

52217355465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52217355465 is an abundant number, since it is smaller than the sum of its proper divisors (52329067191).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52217355465 is a wasteful number, since it uses less digits than its factorization.

52217355465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6205310 (or 6205307 counting only the distinct ones).

The product of its digits is 1260000, while the sum is 45.

The spelling of 52217355465 in words is "fifty-two billion, two hundred seventeen million, three hundred fifty-five thousand, four hundred sixty-five".