41556961 has 2 divisors, whose sum is σ = 41556962. Its totient is φ = 41556960.

The previous prime is 41556947. The next prime is 41556967. The reversal of 41556961 is 16965514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26780625 + 14776336 = 5175^2 + 3844^2 .

It is a cyclic number.

It is not a de Polignac number, because 41556961 - 2¹³ = 41548769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41556961.

It is not a weakly prime, because it can be changed into another prime (41556967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20778480 + 20778481.

It is an arithmetic number, because the mean of its divisors is an integer number (20778481).

Almost surely, 2^41556961 is an apocalyptic number.

It is an amenable number.

41556961 is a deficient number, since it is larger than the sum of its proper divisors (1).

41556961 is an equidigital number, since it uses as much as digits as its factorization.

41556961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 37.

The square root of 41556961 is about 6446.4688783861. The cubic root of 41556961 is about 346.3761071060.

The spelling of 41556961 in words is "forty-one million, five hundred fifty-six thousand, nine hundred sixty-one".