53302523 has 4 divisors (see below), whose sum is σ = 55620048. Its totient is φ = 50985000.

The previous prime is 53302519. The next prime is 53302537. The reversal of 53302523 is 32520335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32520335 = 5 ⋅6504067.

It is a cyclic number.

It is not a de Polignac number, because 53302523 - 2² = 53302519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 2317501 = 53302523 / (5 + 3 + 3 + 0 + 2 + 5 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53302553) 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, 1158728 + ... + 1158773.

It is an arithmetic number, because the mean of its divisors is an integer number (13905012).

Almost surely, 2^53302523 is an apocalyptic number.

53302523 is a deficient number, since it is larger than the sum of its proper divisors (2317525).

53302523 is a wasteful number, since it uses less digits than its factorization.

53302523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317524.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 53302523 is about 7300.8576893403. The cubic root of 53302523 is about 376.3419135057.

Adding to 53302523 its reverse (32520335), we get a palindrome (85822858).

The spelling of 53302523 in words is "fifty-three million, three hundred two thousand, five hundred twenty-three".