50515552551 has 8 divisors (see below), whose sum is σ = 67355408880. Its totient is φ = 33676365632.

The previous prime is 50515552537. The next prime is 50515552553. The reversal of 50515552551 is 15525551505.

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 50515552551 - 2¹⁵ = 50515519783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50515552553) 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, 48505 + ... + 321533.

It is an arithmetic number, because the mean of its divisors is an integer number (8419426110).

Almost surely, 2^50515552551 is an apocalyptic number.

50515552551 is a deficient number, since it is larger than the sum of its proper divisors (16839856329).

50515552551 is a wasteful number, since it uses less digits than its factorization.

50515552551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334705.

The product of its (nonzero) digits is 156250, while the sum is 39.

The spelling of 50515552551 in words is "fifty billion, five hundred fifteen million, five hundred fifty-two thousand, five hundred fifty-one".