1528970225 has 24 divisors (see below), whose sum is σ = 2015228160. Its totient is φ = 1146763520.

The previous prime is 1528970171. The next prime is 1528970227. The reversal of 1528970225 is 5220798251.

It is not a de Polignac number, because 1528970225 - 2¹⁰ = 1528969201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1528970227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104936 + ... + 118614.

It is an arithmetic number, because the mean of its divisors is an integer number (83967840).

Almost surely, 2^1528970225 is an apocalyptic number.

It is an amenable number.

1528970225 is a deficient number, since it is larger than the sum of its proper divisors (486257935).

1528970225 is a wasteful number, since it uses less digits than its factorization.

1528970225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13969 (or 13964 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 1528970225 is about 39102.0488593629. The cubic root of 1528970225 is about 1152.0367748938.

The spelling of 1528970225 in words is "one billion, five hundred twenty-eight million, nine hundred seventy thousand, two hundred twenty-five".