41565997 has 4 divisors (see below), whose sum is σ = 45344736. Its totient is φ = 37787260.

The previous prime is 41565989. The next prime is 41566013. The reversal of 41565997 is 79956514.

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 not a de Polignac number, because 41565997 - 2³ = 41565989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41565967) 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, 1889353 + ... + 1889374.

It is an arithmetic number, because the mean of its divisors is an integer number (11336184).

Almost surely, 2^41565997 is an apocalyptic number.

It is an amenable number.

41565997 is a deficient number, since it is larger than the sum of its proper divisors (3778739).

41565997 is a wasteful number, since it uses less digits than its factorization.

41565997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778738.

The product of its digits is 340200, while the sum is 46.

The square root of 41565997 is about 6447.1696890961. The cubic root of 41565997 is about 346.4012102223.

It can be divided in two parts, 4156 and 5997, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 41565997 in words is "forty-one million, five hundred sixty-five thousand, nine hundred ninety-seven".