41624561 has 4 divisors (see below), whose sum is σ = 45408624. Its totient is φ = 37840500.

The previous prime is 41624533. The next prime is 41624579. The reversal of 41624561 is 16542614.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41624561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (41624521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1892015 + ... + 1892036.

It is an arithmetic number, because the mean of its divisors is an integer number (11352156).

Almost surely, 2^41624561 is an apocalyptic number.

It is an amenable number.

41624561 is a deficient number, since it is larger than the sum of its proper divisors (3784063).

41624561 is a wasteful number, since it uses less digits than its factorization.

41624561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784062.

The product of its digits is 5760, while the sum is 29.

The square root of 41624561 is about 6451.7099283833. The cubic root of 41624561 is about 346.5638200624.

The spelling of 41624561 in words is "forty-one million, six hundred twenty-four thousand, five hundred sixty-one".