41909557 has 2 divisors, whose sum is σ = 41909558. Its totient is φ = 41909556.

The previous prime is 41909531. The next prime is 41909617. The reversal of 41909557 is 75590914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38427601 + 3481956 = 6199^2 + 1866^2 .

It is a cyclic number.

It is not a de Polignac number, because 41909557 - 2¹⁵ = 41876789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41901557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20954778 + 20954779.

It is an arithmetic number, because the mean of its divisors is an integer number (20954779).

Almost surely, 2^41909557 is an apocalyptic number.

It is an amenable number.

41909557 is a deficient number, since it is larger than the sum of its proper divisors (1).

41909557 is an equidigital number, since it uses as much as digits as its factorization.

41909557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 41909557 is about 6473.7591088949. The cubic root of 41909557 is about 347.3529754313.

The spelling of 41909557 in words is "forty-one million, nine hundred nine thousand, five hundred fifty-seven".