41561645 has 16 divisors (see below), whose sum is σ = 52678080. Its totient is φ = 31392000.

The previous prime is 41561623. The next prime is 41561647. The reversal of 41561645 is 54616514.

It is not a de Polignac number, because 41561645 - 2⁶ = 41561581 is a prime.

It is a super-3 number, since 3×41561645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41561647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37550 + ... + 38640.

It is an arithmetic number, because the mean of its divisors is an integer number (3292380).

Almost surely, 2^41561645 is an apocalyptic number.

It is an amenable number.

41561645 is a deficient number, since it is larger than the sum of its proper divisors (11116435).

41561645 is a wasteful number, since it uses less digits than its factorization.

41561645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516.

The product of its digits is 14400, while the sum is 32.

The square root of 41561645 is about 6446.8321678170. The cubic root of 41561645 is about 346.3891202867.

The spelling of 41561645 in words is "forty-one million, five hundred sixty-one thousand, six hundred forty-five".