40550501 has 2 divisors, whose sum is σ = 40550502. Its totient is φ = 40550500.

The previous prime is 40550473. The next prime is 40550509. The reversal of 40550501 is 10505504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36590401 + 3960100 = 6049^2 + 1990^2 .

It is a cyclic number.

It is not a de Polignac number, because 40550501 - 2¹⁸ = 40288357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40550509) 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, 20275250 + 20275251.

It is an arithmetic number, because the mean of its divisors is an integer number (20275251).

Almost surely, 2^40550501 is an apocalyptic number.

It is an amenable number.

40550501 is a deficient number, since it is larger than the sum of its proper divisors (1).

40550501 is an equidigital number, since it uses as much as digits as its factorization.

40550501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 40550501 is about 6367.9275278539. The cubic root of 40550501 is about 343.5569522782.

The spelling of 40550501 in words is "forty million, five hundred fifty thousand, five hundred one".