1556650225 has 24 divisors (see below), whose sum is σ = 2084462072. Its totient is φ = 1146355200.

The previous prime is 1556650217. The next prime is 1556650241. The reversal of 1556650225 is 5220566551.

It can be written as a sum of positive squares in 12 ways, for example, as 682620129 + 874030096 = 26127^2 + 29564^2 .

It is not a de Polignac number, because 1556650225 - 2³ = 1556650217 is a prime.

It is a Duffinian number.

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, 114805 + ... + 127645.

Almost surely, 2^1556650225 is an apocalyptic number.

It is an amenable number.

1556650225 is a deficient number, since it is larger than the sum of its proper divisors (527811847).

1556650225 is a wasteful number, since it uses less digits than its factorization.

1556650225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13237 (or 13232 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 1556650225 is about 39454.4069148175. The cubic root of 1556650225 is about 1158.9472774337.

The spelling of 1556650225 in words is "one billion, five hundred fifty-six million, six hundred fifty thousand, two hundred twenty-five".