505225151554321 has 16 divisors (see below), whose sum is σ = 570161024461440. Its totient is φ = 443457051972480.

The previous prime is 505225151554309. The next prime is 505225151554327. The reversal of 505225151554321 is 123455151522505.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 505225151554321 - 2²³ = 505225143165713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505225151554327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268709725 + ... + 270583381.

It is an arithmetic number, because the mean of its divisors is an integer number (35635064028840).

Almost surely, 2^{505225151554321} is an apocalyptic number.

It is an amenable number.

505225151554321 is a deficient number, since it is larger than the sum of its proper divisors (64935872907119).

505225151554321 is a wasteful number, since it uses less digits than its factorization.

505225151554321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718984.

The product of its (nonzero) digits is 1500000, while the sum is 46.

The spelling of 505225151554321 in words is "five hundred five trillion, two hundred twenty-five billion, one hundred fifty-one million, five hundred fifty-four thousand, three hundred twenty-one".