53455428 has 36 divisors (see below), whose sum is σ = 145518828. Its totient is φ = 16447680.

The previous prime is 53455397. The next prime is 53455433. The reversal of 53455428 is 82455435.

53455428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17239104 + 36216324 = 4152^2 + 6018^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 53455392 and 53455401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56643 + ... + 57578.

Almost surely, 2^53455428 is an apocalyptic number.

It is an amenable number.

53455428 is an abundant number, since it is smaller than the sum of its proper divisors (92063400).

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

53455428 is a wasteful number, since it uses less digits than its factorization.

53455428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114244 (or 114239 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 53455428 is about 7311.3219051003. The cubic root of 53455428 is about 376.7014313420.

The spelling of 53455428 in words is "fifty-three million, four hundred fifty-five thousand, four hundred twenty-eight".