53569497 has 4 divisors (see below), whose sum is σ = 71426000. Its totient is φ = 35712996.

The previous prime is 53569487. The next prime is 53569501. The reversal of 53569497 is 79496535.

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 de Polignac number, because none of the positive numbers 2^k-53569497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53569487) 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, 8928247 + ... + 8928252.

It is an arithmetic number, because the mean of its divisors is an integer number (17856500).

Almost surely, 2^53569497 is an apocalyptic number.

It is an amenable number.

53569497 is a deficient number, since it is larger than the sum of its proper divisors (17856503).

53569497 is a wasteful number, since it uses less digits than its factorization.

53569497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17856502.

The product of its digits is 1020600, while the sum is 48.

The square root of 53569497 is about 7319.1185944757. The cubic root of 53569497 is about 376.9691897886.

The spelling of 53569497 in words is "fifty-three million, five hundred sixty-nine thousand, four hundred ninety-seven".