505625621441 has 4 divisors (see below), whose sum is σ = 505627470384. Its totient is φ = 505623772500.

The previous prime is 505625621429. The next prime is 505625621443. The reversal of 505625621441 is 144126526505.

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 505625621441 - 2⁶ = 505625621377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505625621443) 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, 423935 + ... + 1091316.

It is an arithmetic number, because the mean of its divisors is an integer number (126406867596).

Almost surely, 2^505625621441 is an apocalyptic number.

It is an amenable number.

505625621441 is a deficient number, since it is larger than the sum of its proper divisors (1848943).

505625621441 is a wasteful number, since it uses less digits than its factorization.

505625621441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848942.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 505625621441 in words is "five hundred five billion, six hundred twenty-five million, six hundred twenty-one thousand, four hundred forty-one".