41001557 has 2 divisors, whose sum is σ = 41001558. Its totient is φ = 41001556.

The previous prime is 41001551. The next prime is 41001589. The reversal of 41001557 is 75510014.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30184036 + 10817521 = 5494^2 + 3289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41001557 is a prime.

It is a super-2 number, since 2×41001557² = 3362255352848498, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41001551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20500778 + 20500779.

It is an arithmetic number, because the mean of its divisors is an integer number (20500779).

Almost surely, 2^41001557 is an apocalyptic number.

It is an amenable number.

41001557 is a deficient number, since it is larger than the sum of its proper divisors (1).

41001557 is an equidigital number, since it uses as much as digits as its factorization.

41001557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 41001557 is about 6403.2458175522. The cubic root of 41001557 is about 344.8260889214.

The spelling of 41001557 in words is "forty-one million, one thousand, five hundred fifty-seven".