1205553225 has 24 divisors (see below), whose sum is σ = 2000309472. Its totient is φ = 640662400.

The previous prime is 1205553197. The next prime is 1205553241. The reversal of 1205553225 is 5223555021.

It is not a de Polignac number, because 1205553225 - 2⁸ = 1205552969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1205553192 and 1205553201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7527 + ... + 49676.

It is an arithmetic number, because the mean of its divisors is an integer number (83346228).

Almost surely, 2^1205553225 is an apocalyptic number.

1205553225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1205553225 is a deficient number, since it is larger than the sum of its proper divisors (794756247).

1205553225 is a wasteful number, since it uses less digits than its factorization.

1205553225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57497 (or 57492 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 1205553225 is about 34721.0775322426. The cubic root of 1205553225 is about 1064.2952643275.

The spelling of 1205553225 in words is "one billion, two hundred five million, five hundred fifty-three thousand, two hundred twenty-five".