44125221 has 16 divisors (see below), whose sum is σ = 67996800. Its totient is φ = 24930048.

The previous prime is 44125219. The next prime is 44125223. The reversal of 44125221 is 12252144.

It is an interprime number because it is at equal distance from previous prime (44125219) and next prime (44125223).

It is not a de Polignac number, because 44125221 - 2¹ = 44125219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44125223) 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, 9936 + ... + 13673.

It is an arithmetic number, because the mean of its divisors is an integer number (4249800).

Almost surely, 2^44125221 is an apocalyptic number.

It is an amenable number.

44125221 is a deficient number, since it is larger than the sum of its proper divisors (23871579).

44125221 is a wasteful number, since it uses less digits than its factorization.

44125221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23708.

The product of its digits is 640, while the sum is 21.

The square root of 44125221 is about 6642.6817626618. The cubic root of 44125221 is about 353.3694206842.

Adding to 44125221 its reverse (12252144), we get a palindrome (56377365).

The spelling of 44125221 in words is "forty-four million, one hundred twenty-five thousand, two hundred twenty-one".