1550065 has 8 divisors (see below), whose sum is σ = 2029248. Its totient is φ = 1127280.

The previous prime is 1550053. The next prime is 1550069. The reversal of 1550065 is 5600551.

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

It is not a de Polignac number, because 1550065 - 2⁵ = 1550033 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1550069) by changing a digit.

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, 14037 + ... + 14146.

It is an arithmetic number, because the mean of its divisors is an integer number (253656).

2^1550065 is an apocalyptic number.

It is an amenable number.

1550065 is a deficient number, since it is larger than the sum of its proper divisors (479183).

1550065 is a wasteful number, since it uses less digits than its factorization.

1550065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28199.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 1550065 is about 1245.0160641534. The cubic root of 1550065 is about 115.7310704272.

The spelling of 1550065 in words is "one million, five hundred fifty thousand, sixty-five".