53100665 has 4 divisors (see below), whose sum is σ = 63720804. Its totient is φ = 42480528.

The previous prime is 53100659. The next prime is 53100667. The reversal of 53100665 is 56600135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12243001 + 40857664 = 3499^2 + 6392^2 .

It is a cyclic number.

It is not a de Polignac number, because 53100665 - 2⁶ = 53100601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53100667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5310062 + ... + 5310071.

It is an arithmetic number, because the mean of its divisors is an integer number (15930201).

Almost surely, 2^53100665 is an apocalyptic number.

It is an amenable number.

53100665 is a deficient number, since it is larger than the sum of its proper divisors (10620139).

53100665 is a wasteful number, since it uses less digits than its factorization.

53100665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10620138.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 53100665 is about 7287.0203101130. The cubic root of 53100665 is about 375.8662404289.

The spelling of 53100665 in words is "fifty-three million, one hundred thousand, six hundred sixty-five".