52972189 has 2 divisors, whose sum is σ = 52972190. Its totient is φ = 52972188.

The previous prime is 52972121. The next prime is 52972201. The reversal of 52972189 is 98127925.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52446564 + 525625 = 7242^2 + 725^2 .

It is a cyclic number.

It is not a de Polignac number, because 52972189 - 2¹³ = 52963997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52972109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26486094 + 26486095.

It is an arithmetic number, because the mean of its divisors is an integer number (26486095).

Almost surely, 2^52972189 is an apocalyptic number.

It is an amenable number.

52972189 is a deficient number, since it is larger than the sum of its proper divisors (1).

52972189 is an equidigital number, since it uses as much as digits as its factorization.

52972189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 43.

The square root of 52972189 is about 7278.1995713226. The cubic root of 52972189 is about 375.5628620002.

The spelling of 52972189 in words is "fifty-two million, nine hundred seventy-two thousand, one hundred eighty-nine".