1443552225 has 48 divisors (see below), whose sum is σ = 2458080768. Its totient is φ = 746979840.

The previous prime is 1443552223. The next prime is 1443552239. The reversal of 1443552225 is 5222553441.

It is a happy number.

It is not a de Polignac number, because 1443552225 - 2¹ = 1443552223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1443552221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1683997 + ... + 1684853.

It is an arithmetic number, because the mean of its divisors is an integer number (51210016).

Almost surely, 2^1443552225 is an apocalyptic number.

1443552225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1443552225 is a deficient number, since it is larger than the sum of its proper divisors (1014528543).

1443552225 is a wasteful number, since it uses less digits than its factorization.

1443552225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514 (or 1509 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

The square root of 1443552225 is about 37994.1077668630. The cubic root of 1443552225 is about 1130.1710198776.

The spelling of 1443552225 in words is "one billion, four hundred forty-three million, five hundred fifty-two thousand, two hundred twenty-five".