40252547 has 2 divisors, whose sum is σ = 40252548. Its totient is φ = 40252546.

The previous prime is 40252519. The next prime is 40252561. The reversal of 40252547 is 74525204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40252547 - 2⁶ = 40252483 is a prime.

It is a Chen prime.

It is equal to p_2448047 and since 40252547 and 2448047 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40252517) 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, 20126273 + 20126274.

It is an arithmetic number, because the mean of its divisors is an integer number (20126274).

Almost surely, 2^40252547 is an apocalyptic number.

40252547 is a deficient number, since it is larger than the sum of its proper divisors (1).

40252547 is an equidigital number, since it uses as much as digits as its factorization.

40252547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 40252547 is about 6344.4894987698. The cubic root of 40252547 is about 342.7134286985.

The spelling of 40252547 in words is "forty million, two hundred fifty-two thousand, five hundred forty-seven".