53630665 has 32 divisors (see below), whose sum is σ = 76204800. Its totient is φ = 35788800.

The previous prime is 53630659. The next prime is 53630671. The reversal of 53630665 is 56603635.

It is a happy number.

53630665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53630659) and next prime (53630671).

It is not a de Polignac number, because 53630665 - 2⁷ = 53630537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53630665.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37636 + ... + 39034.

It is an arithmetic number, because the mean of its divisors is an integer number (2381400).

Almost surely, 2^53630665 is an apocalyptic number.

53630665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53630665 is a deficient number, since it is larger than the sum of its proper divisors (22574135).

53630665 is a wasteful number, since it uses less digits than its factorization.

53630665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473.

The product of its (nonzero) digits is 48600, while the sum is 34.

The square root of 53630665 is about 7323.2960475458. The cubic root of 53630665 is about 377.1126151947.

It can be divided in two parts, 5 and 3630665, that multiplied together give a triangular number (18153325 = T₆₀₂₅).

The spelling of 53630665 in words is "fifty-three million, six hundred thirty thousand, six hundred sixty-five".