1530668925 has 36 divisors (see below), whose sum is σ = 2745634164. Its totient is φ = 815155200.

The previous prime is 1530668879. The next prime is 1530668957. The reversal of 1530668925 is 5298660351.

It can be written as a sum of positive squares in 6 ways, for example, as 235100889 + 1295568036 = 15333^2 + 35994^2 .

It is not a de Polignac number, because 1530668925 - 2⁹ = 1530668413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 160285 + ... + 169565.

Almost surely, 2^1530668925 is an apocalyptic number.

1530668925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1530668925 is a deficient number, since it is larger than the sum of its proper divisors (1214965239).

1530668925 is a wasteful number, since it uses less digits than its factorization.

1530668925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10030 (or 10022 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 1530668925 is about 39123.7641977354. The cubic root of 1530668925 is about 1152.4632581458.

The spelling of 1530668925 in words is "one billion, five hundred thirty million, six hundred sixty-eight thousand, nine hundred twenty-five".