1550441001 has 8 divisors (see below), whose sum is σ = 2087722944. Its totient is φ = 1023393200.

The previous prime is 1550440993. The next prime is 1550441027. The reversal of 1550441001 is 1001440551.

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

It is a cyclic number.

It is not a de Polignac number, because 1550441001 - 2³ = 1550440993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1550443001) 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, 2558181 + ... + 2558786.

It is an arithmetic number, because the mean of its divisors is an integer number (260965368).

Almost surely, 2^1550441001 is an apocalyptic number.

It is an amenable number.

1550441001 is a deficient number, since it is larger than the sum of its proper divisors (537281943).

1550441001 is a wasteful number, since it uses less digits than its factorization.

1550441001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117071.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1550441001 is about 39375.6396900419. The cubic root of 1550441001 is about 1157.4042734240.

Adding to 1550441001 its reverse (1001440551), we get a palindrome (2551881552).

The spelling of 1550441001 in words is "one billion, five hundred fifty million, four hundred forty-one thousand, one".