505325525430013 has 4 divisors (see below), whose sum is σ = 505325799125568. Its totient is φ = 505325251734460.

The previous prime is 505325525430001. The next prime is 505325525430017. The reversal of 505325525430013 is 310034525523505.

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 a de Polignac number, because none of the positive numbers 2^k-505325525430013 is a prime.

It is a super-2 number, since 2×505325525430013² (a number of 30 digits) contains 22 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 (505325525430017) 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, 134059381 + ... + 137777242.

It is an arithmetic number, because the mean of its divisors is an integer number (126331449781392).

Almost surely, 2^{505325525430013} is an apocalyptic number.

It is an amenable number.

505325525430013 is a deficient number, since it is larger than the sum of its proper divisors (273695555).

505325525430013 is a wasteful number, since it uses less digits than its factorization.

505325525430013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273695554.

The product of its (nonzero) digits is 1350000, while the sum is 43.

The spelling of 505325525430013 in words is "five hundred five trillion, three hundred twenty-five billion, five hundred twenty-five million, four hundred thirty thousand, thirteen".