53443456 has 32 divisors (see below), whose sum is σ = 116151480. Its totient is φ = 24291840.

The previous prime is 53443391. The next prime is 53443457. The reversal of 53443456 is 65434435.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53443457) 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, 17571 + ... + 20386.

Almost surely, 2^53443456 is an apocalyptic number.

It is an amenable number.

53443456 is an abundant number, since it is smaller than the sum of its proper divisors (62708024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53443456 is a wasteful number, since it uses less digits than its factorization.

53443456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37982 (or 37970 counting only the distinct ones).

The product of its digits is 86400, while the sum is 34.

The square root of 53443456 is about 7310.5031290603. The cubic root of 53443456 is about 376.6733069373.

The spelling of 53443456 in words is "fifty-three million, four hundred forty-three thousand, four hundred fifty-six".