1675648125 has 30 divisors (see below), whose sum is σ = 3024517782. Its totient is φ = 893676000.

The previous prime is 1675648109. The next prime is 1675648127. The reversal of 1675648125 is 5218465761.

1675648125 is a `hidden beast` number, since 1 + 6 + 7 + 564 + 81 + 2 + 5 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 453306681 + 1222341444 = 21291^2 + 34962^2 .

It is not a de Polignac number, because 1675648125 - 2⁴ = 1675648109 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 not an unprimeable number, because it can be changed into a prime (1675648127) 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 29 ways as a sum of consecutive naturals, for example, 143322 + ... + 154571.

Almost surely, 2^1675648125 is an apocalyptic number.

1675648125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1675648125 is a deficient number, since it is larger than the sum of its proper divisors (1348869657).

1675648125 is an equidigital number, since it uses as much as digits as its factorization.

1675648125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297919 (or 297901 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 1675648125 is about 40934.6812006641. The cubic root of 1675648125 is about 1187.7570265434.

The spelling of 1675648125 in words is "one billion, six hundred seventy-five million, six hundred forty-eight thousand, one hundred twenty-five".