1013252225 has 6 divisors (see below), whose sum is σ = 1256432790. Its totient is φ = 810601760.

The previous prime is 1013252167. The next prime is 1013252239. The reversal of 1013252225 is 5222523101.

It can be written as a sum of positive squares in 3 ways, for example, as 3474496 + 1009777729 = 1864^2 + 31777^2 .

It is not a de Polignac number, because 1013252225 - 2¹⁰ = 1013251201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1013252225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20265020 + ... + 20265069.

It is an arithmetic number, because the mean of its divisors is an integer number (209405465).

Almost surely, 2^1013252225 is an apocalyptic number.

It is an amenable number.

1013252225 is a deficient number, since it is larger than the sum of its proper divisors (243180565).

1013252225 is an equidigital number, since it uses as much as digits as its factorization.

1013252225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40530099 (or 40530094 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1013252225 is about 31831.6230343349. The cubic root of 1013252225 is about 1004.3980372450.

Adding to 1013252225 its reverse (5222523101), we get a palindrome (6235775326).

The spelling of 1013252225 in words is "one billion, thirteen million, two hundred fifty-two thousand, two hundred twenty-five".