551253510551 has 4 divisors (see below), whose sum is σ = 575221054512. Its totient is φ = 527285966592.

The previous prime is 551253510529. The next prime is 551253510601. The reversal of 551253510551 is 155015352155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 551253510551 - 2⁶ = 551253510487 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 (551253510851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11983771946 + ... + 11983771991.

It is an arithmetic number, because the mean of its divisors is an integer number (143805263628).

Almost surely, 2^551253510551 is an apocalyptic number.

551253510551 is a deficient number, since it is larger than the sum of its proper divisors (23967543961).

551253510551 is a wasteful number, since it uses less digits than its factorization.

551253510551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23967543960.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 551253510551 in words is "five hundred fifty-one billion, two hundred fifty-three million, five hundred ten thousand, five hundred fifty-one".