15050055551557 has 8 divisors (see below), whose sum is σ = 16207822507520. Its totient is φ = 13892298649200.

The previous prime is 15050055551497. The next prime is 15050055551561. The reversal of 15050055551557 is 75515555005051.

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 15050055551557 - 2²⁷ = 15049921333829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15050055551557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15050055651557) 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, 752944 + ... + 5537782.

It is an arithmetic number, because the mean of its divisors is an integer number (2025977813440).

Almost surely, 2^{15050055551557} is an apocalyptic number.

It is an amenable number.

15050055551557 is a deficient number, since it is larger than the sum of its proper divisors (1157766955963).

15050055551557 is a wasteful number, since it uses less digits than its factorization.

15050055551557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026803.

The product of its (nonzero) digits is 2734375, while the sum is 49.

The spelling of 15050055551557 in words is "fifteen trillion, fifty billion, fifty-five million, five hundred fifty-one thousand, five hundred fifty-seven".