41615521 has 2 divisors, whose sum is σ = 41615522. Its totient is φ = 41615520.

The previous prime is 41615513. The next prime is 41615537. The reversal of 41615521 is 12551614.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32615521 + 9000000 = 5711^2 + 3000^2 .

It is a cyclic number.

It is not a de Polignac number, because 41615521 - 2³ = 41615513 is a prime.

It is not a weakly prime, because it can be changed into another prime (41615921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20807760 + 20807761.

It is an arithmetic number, because the mean of its divisors is an integer number (20807761).

Almost surely, 2^41615521 is an apocalyptic number.

It is an amenable number.

41615521 is a deficient number, since it is larger than the sum of its proper divisors (1).

41615521 is an equidigital number, since it uses as much as digits as its factorization.

41615521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 25.

The square root of 41615521 is about 6451.0093008769. The cubic root of 41615521 is about 346.5387293973.

The spelling of 41615521 in words is "forty-one million, six hundred fifteen thousand, five hundred twenty-one".