1445255556 has 24 divisors (see below), whose sum is σ = 3372885600. Its totient is φ = 481662912.

The previous prime is 1445255549. The next prime is 1445255597. The reversal of 1445255556 is 6555525441.

It is a super-3 number, since 3×1445255556³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105595 + ... + 118493.

It is an arithmetic number, because the mean of its divisors is an integer number (140536900).

Almost surely, 2^1445255556 is an apocalyptic number.

It is an amenable number.

1445255556 is an abundant number, since it is smaller than the sum of its proper divisors (1927630044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1445255556 is a wasteful number, since it uses less digits than its factorization.

1445255556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22243 (or 22241 counting only the distinct ones).

The product of its digits is 600000, while the sum is 42.

The square root of 1445255556 is about 38016.5168841124. The cubic root of 1445255556 is about 1130.6153632676.

The spelling of 1445255556 in words is "one billion, four hundred forty-five million, two hundred fifty-five thousand, five hundred fifty-six".