1111000551 has 8 divisors (see below), whose sum is σ = 1486569600. Its totient is φ = 738049272.

The previous prime is 1111000549. The next prime is 1111000559. The reversal of 1111000551 is 1550001111.

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

It is not a de Polignac number, because 1111000551 - 2¹ = 1111000549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111000551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111000559) 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, 653451 + ... + 655148.

It is an arithmetic number, because the mean of its divisors is an integer number (185821200).

Almost surely, 2^1111000551 is an apocalyptic number.

1111000551 is a deficient number, since it is larger than the sum of its proper divisors (375569049).

1111000551 is a wasteful number, since it uses less digits than its factorization.

1111000551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308885.

The product of its (nonzero) digits is 25, while the sum is 15.

The square root of 1111000551 is about 33331.6748904102. The cubic root of 1111000551 is about 1035.7098139147.

Adding to 1111000551 its reverse (1550001111), we get a palindrome (2661001662).

The spelling of 1111000551 in words is "one billion, one hundred eleven million, five hundred fifty-one", and thus it is an aban number.