53538505 has 4 divisors (see below), whose sum is σ = 64246212. Its totient is φ = 42830800.

The previous prime is 53538479. The next prime is 53538539. The reversal of 53538505 is 50583535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50583535 = 5 ⋅10116707.

It can be written as a sum of positive squares in 2 ways, for example, as 19245769 + 34292736 = 4387^2 + 5856^2 .

It is not a de Polignac number, because 53538505 - 2⁷ = 53538377 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, 5353846 + ... + 5353855.

It is an arithmetic number, because the mean of its divisors is an integer number (16061553).

Almost surely, 2^53538505 is an apocalyptic number.

It is an amenable number.

53538505 is a deficient number, since it is larger than the sum of its proper divisors (10707707).

53538505 is a wasteful number, since it uses less digits than its factorization.

53538505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10707706.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 53538505 is about 7317.0010933442. The cubic root of 53538505 is about 376.8964787402.

The spelling of 53538505 in words is "fifty-three million, five hundred thirty-eight thousand, five hundred five".