53040569 has 4 divisors (see below), whose sum is σ = 53679696. Its totient is φ = 52401444.

The previous prime is 53040563. The next prime is 53040577. The reversal of 53040569 is 96504035.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53040569 is a prime.

It is a super-2 number, since 2×53040569² = 5626603919687522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53040563) 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, 319439 + ... + 319604.

It is an arithmetic number, because the mean of its divisors is an integer number (13419924).

Almost surely, 2^53040569 is an apocalyptic number.

It is an amenable number.

53040569 is a deficient number, since it is larger than the sum of its proper divisors (639127).

53040569 is an equidigital number, since it uses as much as digits as its factorization.

53040569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639126.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 53040569 is about 7282.8956466504. The cubic root of 53040569 is about 375.7243929637.

The spelling of 53040569 in words is "fifty-three million, forty thousand, five hundred sixty-nine".