44225121551 has 16 divisors (see below), whose sum is σ = 49095051264. Its totient is φ = 39581144544.

The previous prime is 44225121503. The next prime is 44225121553. The reversal of 44225121551 is 15512152244.

It is a cyclic number.

It is not a de Polignac number, because 44225121551 - 2¹⁴ = 44225105167 is a prime.

It is a super-2 number, since 2×44225121551² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44225121553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272855 + ... + 403608.

It is an arithmetic number, because the mean of its divisors is an integer number (3068440704).

Almost surely, 2^44225121551 is an apocalyptic number.

44225121551 is a deficient number, since it is larger than the sum of its proper divisors (4869929713).

44225121551 is a wasteful number, since it uses less digits than its factorization.

44225121551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676630.

The product of its digits is 16000, while the sum is 32.

Adding to 44225121551 its reverse (15512152244), we get a palindrome (59737273795).

The spelling of 44225121551 in words is "forty-four billion, two hundred twenty-five million, one hundred twenty-one thousand, five hundred fifty-one".