505000050051 has 32 divisors (see below), whose sum is σ = 778161646080. Its totient is φ = 285337691136.

The previous prime is 505000050029. The next prime is 505000050059. The reversal of 505000050051 is 150050000505.

It is not a de Polignac number, because 505000050051 - 2¹⁵ = 505000017283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (505000050059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2147260 + ... + 2370806.

It is an arithmetic number, because the mean of its divisors is an integer number (24317551440).

Almost surely, 2^505000050051 is an apocalyptic number.

505000050051 is a deficient number, since it is larger than the sum of its proper divisors (273161596029).

505000050051 is a wasteful number, since it uses less digits than its factorization.

505000050051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224763.

The product of its (nonzero) digits is 625, while the sum is 21.

Adding to 505000050051 its reverse (150050000505), we get a palindrome (655050050556).

The spelling of 505000050051 in words is "five hundred five billion, fifty thousand, fifty-one".