505100550004 has 6 divisors (see below), whose sum is σ = 883925962514. Its totient is φ = 252550275000.

The previous prime is 505100550001. The next prime is 505100550007. The reversal of 505100550004 is 400055001505.

It is an interprime number because it is at equal distance from previous prime (505100550001) and next prime (505100550007).

It can be written as a sum of positive squares in only one way, i.e., 287103072400 + 217997477604 = 535820^2 + 466902^2 .

It is a super-2 number, since 2×505100550004² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505100550001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63137568747 + ... + 63137568754.

Almost surely, 2^505100550004 is an apocalyptic number.

It is an amenable number.

505100550004 is a deficient number, since it is larger than the sum of its proper divisors (378825412510).

505100550004 is a wasteful number, since it uses less digits than its factorization.

505100550004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126275137505 (or 126275137503 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

Adding to 505100550004 its reverse (400055001505), we get a palindrome (905155551509).

The spelling of 505100550004 in words is "five hundred five billion, one hundred million, five hundred fifty thousand, four".