1225225005 has 16 divisors (see below), whose sum is σ = 1964269440. Its totient is φ = 652150208.

The previous prime is 1225224991. The next prime is 1225225021. The reversal of 1225225005 is 5005225221.

It is a cyclic number.

It is not a de Polignac number, because 1225225005 - 2⁴ = 1225224989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73650 + ... + 88739.

It is an arithmetic number, because the mean of its divisors is an integer number (122766840).

Almost surely, 2^1225225005 is an apocalyptic number.

1225225005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225225005 is a deficient number, since it is larger than the sum of its proper divisors (739044435).

1225225005 is a wasteful number, since it uses less digits than its factorization.

1225225005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162900.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 1225225005 is about 35003.2142095551. The cubic root of 1225225005 is about 1070.0529874479.

The spelling of 1225225005 in words is "one billion, two hundred twenty-five million, two hundred twenty-five thousand, five".