506240526325561 has 4 divisors (see below), whose sum is σ = 507042809252224. Its totient is φ = 505438243398900.

The previous prime is 506240526325531. The next prime is 506240526325619. The reversal of 506240526325561 is 165523625042605.

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-506240526325561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 506240526325499 and 506240526325508.

It is not an unprimeable number, because it can be changed into a prime (506240526325531) 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, 401141462385 + ... + 401141463646.

It is an arithmetic number, because the mean of its divisors is an integer number (126760702313056).

Almost surely, 2^{506240526325561} is an apocalyptic number.

It is an amenable number.

506240526325561 is a deficient number, since it is larger than the sum of its proper divisors (802282926663).

506240526325561 is an equidigital number, since it uses as much as digits as its factorization.

506240526325561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802282926662.

The product of its (nonzero) digits is 12960000, while the sum is 52.

The spelling of 506240526325561 in words is "five hundred six trillion, two hundred forty billion, five hundred twenty-six million, three hundred twenty-five thousand, five hundred sixty-one".