551601251517 has 8 divisors (see below), whose sum is σ = 744778061440. Its totient is φ = 363079304640.

The previous prime is 551601251491. The next prime is 551601251533. The reversal of 551601251517 is 715152106155.

It is a happy number.

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

It is not a de Polignac number, because 551601251517 - 2¹¹ = 551601249469 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 (551601251417) 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, 1163715484 + ... + 1163715957.

It is an arithmetic number, because the mean of its divisors is an integer number (93097257680).

Almost surely, 2^551601251517 is an apocalyptic number.

It is an amenable number.

551601251517 is a deficient number, since it is larger than the sum of its proper divisors (193176809923).

551601251517 is a wasteful number, since it uses less digits than its factorization.

551601251517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327431523.

The product of its (nonzero) digits is 52500, while the sum is 39.

The spelling of 551601251517 in words is "five hundred fifty-one billion, six hundred one million, two hundred fifty-one thousand, five hundred seventeen".