52055217 has 12 divisors (see below), whose sum is σ = 77976080. Its totient is φ = 34703316.

The previous prime is 52055153. The next prime is 52055219. The reversal of 52055217 is 71255025.

It is a happy number.

It is not a de Polignac number, because 52055217 - 2⁶ = 52055153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52055219) 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, 106867 + ... + 107352.

Almost surely, 2^52055217 is an apocalyptic number.

It is an amenable number.

52055217 is a deficient number, since it is larger than the sum of its proper divisors (25920863).

52055217 is an equidigital number, since it uses as much as digits as its factorization.

52055217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214234 (or 214222 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 52055217 is about 7214.9301451920. The cubic root of 52055217 is about 373.3831830933.

The spelling of 52055217 in words is "fifty-two million, fifty-five thousand, two hundred seventeen".