505550445151 has 8 divisors (see below), whose sum is σ = 528528134880. Its totient is φ = 483569979376.

The previous prime is 505550445137. The next prime is 505550445157. The reversal of 505550445151 is 151544055505.

It is not a de Polignac number, because 505550445151 - 2⁵ = 505550445119 is a prime.

It is a super-3 number, since 3×505550445151³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505550445157) 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, 20763310 + ... + 20787643.

It is an arithmetic number, because the mean of its divisors is an integer number (66066016860).

Almost surely, 2^505550445151 is an apocalyptic number.

505550445151 is a deficient number, since it is larger than the sum of its proper divisors (22977689729).

505550445151 is an frugal number, since it uses more digits than its factorization.

505550445151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41551022 (or 41550976 counting only the distinct ones).

The product of its (nonzero) digits is 250000, while the sum is 40.

The spelling of 505550445151 in words is "five hundred five billion, five hundred fifty million, four hundred forty-five thousand, one hundred fifty-one".