52307553 has 4 divisors (see below), whose sum is σ = 69743408. Its totient is φ = 34871700.

The previous prime is 52307539. The next prime is 52307557. The reversal of 52307553 is 35570325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52307553 - 2⁴ = 52307537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52307553.

It is not an unprimeable number, because it can be changed into a prime (52307557) 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, 8717923 + ... + 8717928.

It is an arithmetic number, because the mean of its divisors is an integer number (17435852).

Almost surely, 2^52307553 is an apocalyptic number.

It is an amenable number.

52307553 is a deficient number, since it is larger than the sum of its proper divisors (17435855).

52307553 is a wasteful number, since it uses less digits than its factorization.

52307553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17435854.

The product of its (nonzero) digits is 15750, while the sum is 30.

The square root of 52307553 is about 7232.3960759903. The cubic root of 52307553 is about 373.9855318643.

Adding to 52307553 its reverse (35570325), we get a palindrome (87877878).

The spelling of 52307553 in words is "fifty-two million, three hundred seven thousand, five hundred fifty-three".