1444553550 has 72 divisors (see below), whose sum is σ = 4233869640. Its totient is φ = 350193600.

The previous prime is 1444553549. The next prime is 1444553557. The reversal of 1444553550 is 553554441.

1444553550 is a `hidden beast` number, since 14 + 4 + 45 + 53 + 550 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444553557) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 140965 + ... + 150864.

It is an arithmetic number, because the mean of its divisors is an integer number (58803745).

Almost surely, 2^1444553550 is an apocalyptic number.

1444553550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1444553550 is an abundant number, since it is smaller than the sum of its proper divisors (2789316090).

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

1444553550 is a wasteful number, since it uses less digits than its factorization.

1444553550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291858 (or 291850 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The square root of 1444553550 is about 38007.2828547372. The cubic root of 1444553550 is about 1130.4322751606.

The spelling of 1444553550 in words is "one billion, four hundred forty-four million, five hundred fifty-three thousand, five hundred fifty".