52217609 has 12 divisors (see below), whose sum is σ = 55245312. Its totient is φ = 49303800.

The previous prime is 52217597. The next prime is 52217617. The reversal of 52217609 is 90671225.

It is not a de Polignac number, because 52217609 - 2⁴ = 52217593 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52217689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56864 + ... + 57774.

It is an arithmetic number, because the mean of its divisors is an integer number (4603776).

Almost surely, 2^52217609 is an apocalyptic number.

It is an amenable number.

52217609 is a deficient number, since it is larger than the sum of its proper divisors (3027703).

52217609 is an equidigital number, since it uses as much as digits as its factorization.

52217609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 985 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 52217609 is about 7226.1752677333. The cubic root of 52217609 is about 373.7710500704.

The spelling of 52217609 in words is "fifty-two million, two hundred seventeen thousand, six hundred nine".