53106709 has 4 divisors (see below), whose sum is σ = 53632620. Its totient is φ = 52580800.

The previous prime is 53106707. The next prime is 53106719. The reversal of 53106709 is 90760135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90760135 = 5 ⋅18152027.

It can be written as a sum of positive squares in 2 ways, for example, as 45832900 + 7273809 = 6770^2 + 2697^2 .

It is a cyclic number.

It is not a de Polignac number, because 53106709 - 2¹ = 53106707 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53106707) 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, 262804 + ... + 263005.

It is an arithmetic number, because the mean of its divisors is an integer number (13408155).

Almost surely, 2^53106709 is an apocalyptic number.

It is an amenable number.

53106709 is a deficient number, since it is larger than the sum of its proper divisors (525911).

53106709 is a wasteful number, since it uses less digits than its factorization.

53106709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525910.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 53106709 is about 7287.4350082865. The cubic root of 53106709 is about 375.8805004473.

The spelling of 53106709 in words is "fifty-three million, one hundred six thousand, seven hundred nine".