53839069 has 4 divisors (see below), whose sum is σ = 53860444. Its totient is φ = 53817696.

The previous prime is 53839061. The next prime is 53839091. The reversal of 53839069 is 96093835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96093835 = 5 ⋅19218767.

It can be written as a sum of positive squares in 2 ways, for example, as 49533444 + 4305625 = 7038^2 + 2075^2 .

It is a cyclic number.

It is not a de Polignac number, because 53839069 - 2³ = 53839061 is a prime.

It is a super-2 number, since 2×53839069² = 5797290701573522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53839061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6312 + ... + 12145.

It is an arithmetic number, because the mean of its divisors is an integer number (13465111).

Almost surely, 2^53839069 is an apocalyptic number.

It is an amenable number.

53839069 is a deficient number, since it is larger than the sum of its proper divisors (21375).

53839069 is a wasteful number, since it uses less digits than its factorization.

53839069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21374.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 53839069 is about 7337.5110902812. The cubic root of 53839069 is about 377.6004592073.

The spelling of 53839069 in words is "fifty-three million, eight hundred thirty-nine thousand, sixty-nine".