53539091 has 4 divisors (see below), whose sum is σ = 54058992. Its totient is φ = 53019192.

The previous prime is 53539051. The next prime is 53539099. The reversal of 53539091 is 19093535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19093535 = 5 ⋅3818707.

It is a cyclic number.

It is not a de Polignac number, because 53539091 - 2⁶ = 53539027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53539099) 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, 259796 + ... + 260001.

It is an arithmetic number, because the mean of its divisors is an integer number (13514748).

Almost surely, 2^53539091 is an apocalyptic number.

53539091 is a deficient number, since it is larger than the sum of its proper divisors (519901).

53539091 is a wasteful number, since it uses less digits than its factorization.

53539091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519900.

The product of its (nonzero) digits is 18225, while the sum is 35.

The square root of 53539091 is about 7317.0411369624. The cubic root of 53539091 is about 376.8978538285.

The spelling of 53539091 in words is "fifty-three million, five hundred thirty-nine thousand, ninety-one".