1225366625 has 32 divisors (see below), whose sum is σ = 1780766208. Its totient is φ = 824366400.

The previous prime is 1225366619. The next prime is 1225366687. The reversal of 1225366625 is 5266635221.

It is not a de Polignac number, because 1225366625 - 2⁸ = 1225366369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33164 + ... + 59586.

It is an arithmetic number, because the mean of its divisors is an integer number (55648944).

Almost surely, 2^1225366625 is an apocalyptic number.

It is an amenable number.

1225366625 is a deficient number, since it is larger than the sum of its proper divisors (555399583).

1225366625 is an equidigital number, since it uses as much as digits as its factorization.

1225366625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26498 (or 26488 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 1225366625 is about 35005.2371081814. The cubic root of 1225366625 is about 1070.0942139070.

The spelling of 1225366625 in words is "one billion, two hundred twenty-five million, three hundred sixty-six thousand, six hundred twenty-five".