1225103525 has 6 divisors (see below), whose sum is σ = 1519128402. Its totient is φ = 980082800.

The previous prime is 1225103507. The next prime is 1225103549. The reversal of 1225103525 is 5253015221.

It can be written as a sum of positive squares in 3 ways, for example, as 28912129 + 1196191396 = 5377^2 + 34586^2 .

It is not a de Polignac number, because 1225103525 - 2¹² = 1225099429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1225103494 and 1225103503.

It is a congruent number.

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, 24502046 + ... + 24502095.

It is an arithmetic number, because the mean of its divisors is an integer number (253188067).

Almost surely, 2^1225103525 is an apocalyptic number.

It is an amenable number.

1225103525 is a deficient number, since it is larger than the sum of its proper divisors (294024877).

1225103525 is an equidigital number, since it uses as much as digits as its factorization.

1225103525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49004151 (or 49004146 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1225103525 is about 35001.4788973266. The cubic root of 1225103525 is about 1070.0176213361.

Adding to 1225103525 its reverse (5253015221), we get a palindrome (6478118746).

The spelling of 1225103525 in words is "one billion, two hundred twenty-five million, one hundred three thousand, five hundred twenty-five".