53109305 has 4 divisors (see below), whose sum is σ = 63731172. Its totient is φ = 42487440.

The previous prime is 53109299. The next prime is 53109361. The reversal of 53109305 is 50390135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50390135 = 5 ⋅10078027.

It can be written as a sum of positive squares in 2 ways, for example, as 5513104 + 47596201 = 2348^2 + 6899^2 .

It is not a de Polignac number, because 53109305 - 2¹⁰ = 53108281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5310926 + ... + 5310935.

It is an arithmetic number, because the mean of its divisors is an integer number (15932793).

Almost surely, 2^53109305 is an apocalyptic number.

It is an amenable number.

53109305 is a deficient number, since it is larger than the sum of its proper divisors (10621867).

53109305 is a wasteful number, since it uses less digits than its factorization.

53109305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10621866.

The product of its (nonzero) digits is 2025, while the sum is 26.

The square root of 53109305 is about 7287.6131209059. The cubic root of 53109305 is about 375.8866250337.

The spelling of 53109305 in words is "fifty-three million, one hundred nine thousand, three hundred five".