551253401111 has 8 divisors (see below), whose sum is σ = 630020835840. Its totient is φ = 472490203608.

The previous prime is 551253401107. The next prime is 551253401113. The reversal of 551253401111 is 111104352155.

It is a happy number.

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 551253401111 - 2² = 551253401107 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 (551253401113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775451 + ... + 1305308.

It is an arithmetic number, because the mean of its divisors is an integer number (78752604480).

Almost surely, 2^551253401111 is an apocalyptic number.

551253401111 is a deficient number, since it is larger than the sum of its proper divisors (78767434729).

551253401111 is a wasteful number, since it uses less digits than its factorization.

551253401111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118613.

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 551253401111 its reverse (111104352155), we get a palindrome (662357753266).

The spelling of 551253401111 in words is "five hundred fifty-one billion, two hundred fifty-three million, four hundred one thousand, one hundred eleven".