551523510121 has 8 divisors (see below), whose sum is σ = 561204420480. Its totient is φ = 541900053792.

The previous prime is 551523510103. The next prime is 551523510169. The reversal of 551523510121 is 121015325155.

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 551523510121 - 2⁹ = 551523509609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551523510221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14344141 + ... + 14382538.

It is an arithmetic number, because the mean of its divisors is an integer number (70150552560).

Almost surely, 2^551523510121 is an apocalyptic number.

It is an amenable number.

551523510121 is a deficient number, since it is larger than the sum of its proper divisors (9680910359).

551523510121 is a wasteful number, since it uses less digits than its factorization.

551523510121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28727015.

The product of its (nonzero) digits is 7500, while the sum is 31.

Adding to 551523510121 its reverse (121015325155), we get a palindrome (672538835276).

The spelling of 551523510121 in words is "five hundred fifty-one billion, five hundred twenty-three million, five hundred ten thousand, one hundred twenty-one".