1225235225 has 6 divisors (see below), whose sum is σ = 1519291710. Its totient is φ = 980188160.

The previous prime is 1225235177. The next prime is 1225235243. The reversal of 1225235225 is 5225325221.

It can be written as a sum of positive squares in 3 ways, for example, as 424854544 + 800380681 = 20612^2 + 28291^2 .

It is not a de Polignac number, because 1225235225 - 2²⁸ = 956799769 is a prime.

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, 24504680 + ... + 24504729.

It is an arithmetic number, because the mean of its divisors is an integer number (253215285).

Almost surely, 2^1225235225 is an apocalyptic number.

It is an amenable number.

1225235225 is a deficient number, since it is larger than the sum of its proper divisors (294056485).

1225235225 is an equidigital number, since it uses as much as digits as its factorization.

1225235225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49009419 (or 49009414 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 1225235225 is about 35003.3601958441. The cubic root of 1225235225 is about 1070.0559626595.

It can be divided in two parts, 1225 and 235225, that multiplied together give a square (288150625 = 16975²).

The spelling of 1225235225 in words is "one billion, two hundred twenty-five million, two hundred thirty-five thousand, two hundred twenty-five".