53488447 has 4 divisors (see below), whose sum is σ = 53604936. Its totient is φ = 53371960.

The previous prime is 53488433. The next prime is 53488453. The reversal of 53488447 is 74488435.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53488447 - 2⁷ = 53488319 is a prime.

It is a super-2 number, since 2×53488447² = 5722027924943618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53488417) 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, 57553 + ... + 58474.

It is an arithmetic number, because the mean of its divisors is an integer number (13401234).

Almost surely, 2^53488447 is an apocalyptic number.

53488447 is a deficient number, since it is larger than the sum of its proper divisors (116489).

53488447 is a wasteful number, since it uses less digits than its factorization.

53488447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116488.

The product of its digits is 430080, while the sum is 43.

The square root of 53488447 is about 7313.5796297025. The cubic root of 53488447 is about 376.7789772208.

It can be divided in two parts, 53488 and 447, that added together give a palindrome (53935).

The spelling of 53488447 in words is "fifty-three million, four hundred eighty-eight thousand, four hundred forty-seven".