44612561 has 4 divisors (see below), whose sum is σ = 50985792. Its totient is φ = 38239332.

The previous prime is 44612549. The next prime is 44612567. The reversal of 44612561 is 16521644.

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-44612561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44612567) 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, 3186605 + ... + 3186618.

It is an arithmetic number, because the mean of its divisors is an integer number (12746448).

Almost surely, 2^44612561 is an apocalyptic number.

It is an amenable number.

44612561 is a deficient number, since it is larger than the sum of its proper divisors (6373231).

44612561 is an equidigital number, since it uses as much as digits as its factorization.

44612561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373230.

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

The square root of 44612561 is about 6679.2635073038. The cubic root of 44612561 is about 354.6655873478.

The spelling of 44612561 in words is "forty-four million, six hundred twelve thousand, five hundred sixty-one".