53443455 has 16 divisors (see below), whose sum is σ = 92087520. Its totient is φ = 26310528.

The previous prime is 53443391. The next prime is 53443457. The reversal of 53443455 is 55434435.

It is not a de Polignac number, because 53443455 - 2⁶ = 53443391 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 136840 + ... + 137229.

It is an arithmetic number, because the mean of its divisors is an integer number (5755470).

Almost surely, 2^53443455 is an apocalyptic number.

53443455 is a deficient number, since it is larger than the sum of its proper divisors (38644065).

53443455 is a wasteful number, since it uses less digits than its factorization.

53443455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274090.

The product of its digits is 72000, while the sum is 33.

The square root of 53443455 is about 7310.5030606655. The cubic root of 53443455 is about 376.6733045880.

The spelling of 53443455 in words is "fifty-three million, four hundred forty-three thousand, four hundred fifty-five".