52122447 has 20 divisors (see below), whose sum is σ = 83853000. Its totient is φ = 32074704.

The previous prime is 52122443. The next prime is 52122463. The reversal of 52122447 is 74422125.

52122447 is a `hidden beast` number, since 5 + 212 + 2 + 447 = 666.

It is not a de Polignac number, because 52122447 - 2² = 52122443 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 52122447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52122443) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23697 + ... + 25802.

It is an arithmetic number, because the mean of its divisors is an integer number (4192650).

Almost surely, 2^52122447 is an apocalyptic number.

52122447 is a deficient number, since it is larger than the sum of its proper divisors (31730553).

52122447 is a wasteful number, since it uses less digits than its factorization.

52122447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49524 (or 49515 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 52122447 is about 7219.5877306118. The cubic root of 52122447 is about 373.5438570458.

The spelling of 52122447 in words is "fifty-two million, one hundred twenty-two thousand, four hundred forty-seven".