44257225081 has 8 divisors (see below), whose sum is σ = 45577065600. Its totient is φ = 42956375280.

The previous prime is 44257225079. The next prime is 44257225097. The reversal of 44257225081 is 18052275244.

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 44257225081 - 2¹ = 44257225079 is a prime.

It is a super-2 number, since 2×44257225081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44257225381) 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, 4742950 + ... + 4752271.

It is an arithmetic number, because the mean of its divisors is an integer number (5697133200).

Almost surely, 2^44257225081 is an apocalyptic number.

It is an amenable number.

44257225081 is a deficient number, since it is larger than the sum of its proper divisors (1319840519).

44257225081 is an equidigital number, since it uses as much as digits as its factorization.

44257225081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9495359.

The product of its (nonzero) digits is 179200, while the sum is 40.

The spelling of 44257225081 in words is "forty-four billion, two hundred fifty-seven million, two hundred twenty-five thousand, eighty-one".