505125300001 has 4 divisors (see below), whose sum is σ = 577286057152. Its totient is φ = 432964542852.

The previous prime is 505125299993. The next prime is 505125300007. The reversal of 505125300001 is 100003521505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505125300001 - 2³ = 505125299993 is a prime.

It is a super-2 number, since 2×505125300001² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505125300007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36080378565 + ... + 36080378578.

It is an arithmetic number, because the mean of its divisors is an integer number (144321514288).

Almost surely, 2^505125300001 is an apocalyptic number.

It is an amenable number.

505125300001 is a deficient number, since it is larger than the sum of its proper divisors (72160757151).

505125300001 is an equidigital number, since it uses as much as digits as its factorization.

505125300001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72160757150.

The product of its (nonzero) digits is 750, while the sum is 22.

Adding to 505125300001 its reverse (100003521505), we get a palindrome (605128821506).

The spelling of 505125300001 in words is "five hundred five billion, one hundred twenty-five million, three hundred thousand, one".