165625010 has 16 divisors (see below), whose sum is σ = 299851416. Its totient is φ = 65866368.

The previous prime is 165625007. The next prime is 165625013. The reversal of 165625010 is 10526561.

It is an interprime number because it is at equal distance from previous prime (165625007) and next prime (165625013).

It can be written as a sum of positive squares in 4 ways, for example, as 163353961 + 2271049 = 12781^2 + 1507^2 .

It is not an unprimeable number, because it can be changed into a prime (165625013) 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 7 ways as a sum of consecutive naturals, for example, 46139 + ... + 49598.

Almost surely, 2^165625010 is an apocalyptic number.

165625010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165625010 is a deficient number, since it is larger than the sum of its proper divisors (134226406).

165625010 is a wasteful number, since it uses less digits than its factorization.

165625010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95917.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 165625010 is about 12869.5380647481. The cubic root of 165625010 is about 549.1723198095.

The spelling of 165625010 in words is "one hundred sixty-five million, six hundred twenty-five thousand, ten".