1005224501 has 4 divisors (see below), whose sum is σ = 1064355372. Its totient is φ = 946093632.

The previous prime is 1005224491. The next prime is 1005224503. The reversal of 1005224501 is 1054225001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 562164100 + 443060401 = 23710^2 + 21049^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005224501 - 2¹⁰ = 1005223477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005224503) 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, 29565410 + ... + 29565443.

It is an arithmetic number, because the mean of its divisors is an integer number (266088843).

Almost surely, 2^1005224501 is an apocalyptic number.

It is an amenable number.

1005224501 is a deficient number, since it is larger than the sum of its proper divisors (59130871).

1005224501 is an equidigital number, since it uses as much as digits as its factorization.

1005224501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59130870.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1005224501 is about 31705.2756020193. The cubic root of 1005224501 is about 1001.7384762822.

Adding to 1005224501 its reverse (1054225001), we get a palindrome (2059449502).

The spelling of 1005224501 in words is "one billion, five million, two hundred twenty-four thousand, five hundred one".