1445553505 has 8 divisors (see below), whose sum is σ = 1892361024. Its totient is φ = 1051311600.

The previous prime is 1445553493. The next prime is 1445553509. The reversal of 1445553505 is 5053555441.

It is a happy number.

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

It is not a de Polignac number, because 1445553505 - 2¹⁹ = 1445029217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445553509) 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, 13141341 + ... + 13141450.

It is an arithmetic number, because the mean of its divisors is an integer number (236545128).

Almost surely, 2^1445553505 is an apocalyptic number.

It is an amenable number.

1445553505 is a deficient number, since it is larger than the sum of its proper divisors (446807519).

1445553505 is a wasteful number, since it uses less digits than its factorization.

1445553505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26282807.

The product of its (nonzero) digits is 150000, while the sum is 37.

The square root of 1445553505 is about 38020.4353604742. The cubic root of 1445553505 is about 1130.6930525429.

The spelling of 1445553505 in words is "one billion, four hundred forty-five million, five hundred fifty-three thousand, five hundred five".