40552189 has 2 divisors, whose sum is σ = 40552190. Its totient is φ = 40552188.

The previous prime is 40552177. The next prime is 40552199. The reversal of 40552189 is 98125504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39275289 + 1276900 = 6267^2 + 1130^2 .

It is a cyclic number.

It is not a de Polignac number, because 40552189 - 2¹⁵ = 40519421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40552159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20276094 + 20276095.

It is an arithmetic number, because the mean of its divisors is an integer number (20276095).

Almost surely, 2^40552189 is an apocalyptic number.

It is an amenable number.

40552189 is a deficient number, since it is larger than the sum of its proper divisors (1).

40552189 is an equidigital number, since it uses as much as digits as its factorization.

40552189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 40552189 is about 6368.0600656715. The cubic root of 40552189 is about 343.5617193059.

The spelling of 40552189 in words is "forty million, five hundred fifty-two thousand, one hundred eighty-nine".