52972109 has 2 divisors, whose sum is σ = 52972110. Its totient is φ = 52972108.

The previous prime is 52972103. The next prime is 52972111. The reversal of 52972109 is 90127925.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44689225 + 8282884 = 6685^2 + 2878^2 .

It is a cyclic number.

It is not a de Polignac number, because 52972109 - 2⁴ = 52972093 is a prime.

Together with 52972111, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_3168458 and since 52972109 and 3168458 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52972103) 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, 26486054 + 26486055.

It is an arithmetic number, because the mean of its divisors is an integer number (26486055).

Almost surely, 2^52972109 is an apocalyptic number.

It is an amenable number.

52972109 is a deficient number, since it is larger than the sum of its proper divisors (1).

52972109 is an equidigital number, since it uses as much as digits as its factorization.

52972109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 52972109 is about 7278.1940754558. The cubic root of 52972109 is about 375.5626729385.

The spelling of 52972109 in words is "fifty-two million, nine hundred seventy-two thousand, one hundred nine".