505225321145 has 16 divisors (see below), whose sum is σ = 620164282368. Its totient is φ = 395012661120.

The previous prime is 505225321127. The next prime is 505225321147. The reversal of 505225321145 is 541123522505.

It is a happy number.

It is not a de Polignac number, because 505225321145 - 2³⁴ = 488045451961 is a prime.

It is a super-2 number, since 2×505225321145² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505225321147) 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, 5894996 + ... + 5980085.

It is an arithmetic number, because the mean of its divisors is an integer number (38760267648).

Almost surely, 2^505225321145 is an apocalyptic number.

It is an amenable number.

505225321145 is a deficient number, since it is larger than the sum of its proper divisors (114938961223).

505225321145 is a wasteful number, since it uses less digits than its factorization.

505225321145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11875280.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 505225321145 in words is "five hundred five billion, two hundred twenty-five million, three hundred twenty-one thousand, one hundred forty-five".