506000050551 has 8 divisors (see below), whose sum is σ = 749629704560. Its totient is φ = 337333367016.

The previous prime is 506000050547. The next prime is 506000050583. The reversal of 506000050551 is 155050000605.

506000050551 is a `hidden beast` number, since 5 + 0 + 60 + 0 + 0 + 0 + 50 + 551 = 666.

It is not a de Polignac number, because 506000050551 - 2² = 506000050547 is a prime.

It is a super-2 number, since 2×506000050551² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 18740742613 = 506000050551 / (5 + 0 + 6 + 0 + 0 + 0 + 0 + 5 + 0 + 5 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506000050511) 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, 9370371280 + ... + 9370371333.

It is an arithmetic number, because the mean of its divisors is an integer number (93703713070).

Almost surely, 2^506000050551 is an apocalyptic number.

506000050551 is a deficient number, since it is larger than the sum of its proper divisors (243629654009).

506000050551 is a wasteful number, since it uses less digits than its factorization.

506000050551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18740742622 (or 18740742616 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 506000050551 in words is "five hundred six billion, fifty thousand, five hundred fifty-one".