1004255551 has 8 divisors (see below), whose sum is σ = 1088143280. Its totient is φ = 921316032.

The previous prime is 1004255543. The next prime is 1004255561. The reversal of 1004255551 is 1555524001.

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

It is not a de Polignac number, because 1004255551 - 2³ = 1004255543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004255561) 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, 234846 + ... + 239083.

It is an arithmetic number, because the mean of its divisors is an integer number (136017910).

Almost surely, 2^1004255551 is an apocalyptic number.

1004255551 is a deficient number, since it is larger than the sum of its proper divisors (83887729).

1004255551 is a wasteful number, since it uses less digits than its factorization.

1004255551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474105.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 1004255551 is about 31689.9913379603. The cubic root of 1004255551 is about 1001.4165095533.

Adding to 1004255551 its reverse (1555524001), we get a palindrome (2559779552).

The spelling of 1004255551 in words is "one billion, four million, two hundred fifty-five thousand, five hundred fifty-one".