52308207 has 16 divisors (see below), whose sum is σ = 88564480. Its totient is φ = 29890296.

The previous prime is 52308163. The next prime is 52308209. The reversal of 52308207 is 70280325.

It is not a de Polignac number, because 52308207 - 2¹⁰ = 52307183 is a prime.

It is a super-2 number, since 2×52308207² = 5472297039109698, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52308209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138193 + ... + 138570.

It is an arithmetic number, because the mean of its divisors is an integer number (5535280).

Almost surely, 2^52308207 is an apocalyptic number.

52308207 is a deficient number, since it is larger than the sum of its proper divisors (36256273).

52308207 is a wasteful number, since it uses less digits than its factorization.

52308207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276779 (or 276773 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 52308207 is about 7232.4412890807. The cubic root of 52308207 is about 373.9870905016.

The spelling of 52308207 in words is "fifty-two million, three hundred eight thousand, two hundred seven".