44552021 has 8 divisors (see below), whose sum is σ = 46053600. Its totient is φ = 43075440.

The previous prime is 44551987. The next prime is 44552023. The reversal of 44552021 is 12025544.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44552021 - 2¹⁸ = 44289877 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 (44552023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2591 + ... + 9788.

It is an arithmetic number, because the mean of its divisors is an integer number (5756700).

Almost surely, 2^44552021 is an apocalyptic number.

It is an amenable number.

44552021 is a deficient number, since it is larger than the sum of its proper divisors (1501579).

44552021 is a wasteful number, since it uses less digits than its factorization.

44552021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12499.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 44552021 is about 6674.7300319938. The cubic root of 44552021 is about 354.5050856574.

Adding to 44552021 its reverse (12025544), we get a palindrome (56577565).

The spelling of 44552021 in words is "forty-four million, five hundred fifty-two thousand, twenty-one".