50500055505551 has 4 divisors (see below), whose sum is σ = 50548105036104. Its totient is φ = 50452005975000.

The previous prime is 50500055505539. The next prime is 50500055505563. The reversal of 50500055505551 is 15550555000505.

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

It is an interprime number because it is at equal distance from previous prime (50500055505539) and next prime (50500055505563).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50500055505551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50500055505499 and 50500055505508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50500055705551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24024763700 + ... + 24024765801.

It is an arithmetic number, because the mean of its divisors is an integer number (12637026259026).

Almost surely, 2^{50500055505551} is an apocalyptic number.

50500055505551 is a deficient number, since it is larger than the sum of its proper divisors (48049530553).

50500055505551 is a wasteful number, since it uses less digits than its factorization.

50500055505551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48049530552.

The product of its (nonzero) digits is 390625, while the sum is 41.

The spelling of 50500055505551 in words is "fifty trillion, five hundred billion, fifty-five million, five hundred five thousand, five hundred fifty-one".