52172851 has 2 divisors, whose sum is σ = 52172852. Its totient is φ = 52172850.

The previous prime is 52172843. The next prime is 52172893. The reversal of 52172851 is 15827125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52172851 - 2³ = 52172843 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (52172831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26086425 + 26086426.

It is an arithmetic number, because the mean of its divisors is an integer number (26086426).

Almost surely, 2^52172851 is an apocalyptic number.

52172851 is a deficient number, since it is larger than the sum of its proper divisors (1).

52172851 is an equidigital number, since it uses as much as digits as its factorization.

52172851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5600, while the sum is 31.

The square root of 52172851 is about 7223.0776681412. The cubic root of 52172851 is about 373.6642276973.

Adding to 52172851 its reverse (15827125), we get a palindrome (67999976).

The spelling of 52172851 in words is "fifty-two million, one hundred seventy-two thousand, eight hundred fifty-one".