41516621 has 2 divisors, whose sum is σ = 41516622. Its totient is φ = 41516620.

The previous prime is 41516599. The next prime is 41516623. The reversal of 41516621 is 12661514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38316100 + 3200521 = 6190^2 + 1789^2 .

It is a cyclic number.

It is not a de Polignac number, because 41516621 - 2²² = 37322317 is a prime.

Together with 41516623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41516623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20758310 + 20758311.

It is an arithmetic number, because the mean of its divisors is an integer number (20758311).

Almost surely, 2^41516621 is an apocalyptic number.

It is an amenable number.

41516621 is a deficient number, since it is larger than the sum of its proper divisors (1).

41516621 is an equidigital number, since it uses as much as digits as its factorization.

41516621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 41516621 is about 6443.3392740100. The cubic root of 41516621 is about 346.2639932308.

The spelling of 41516621 in words is "forty-one million, five hundred sixteen thousand, six hundred twenty-one".