53449632 has 120 divisors (see below), whose sum is σ = 166577796. Its totient is φ = 16754688.

The previous prime is 53449589. The next prime is 53449633. The reversal of 53449632 is 23694435.

53449632 is a `hidden beast` number, since 534 + 4 + 96 + 32 = 666.

53449632 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 52359696 + 1089936 = 7236^2 + 1044^2 .

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

It is not an unprimeable number, because it can be changed into a prime (53449633) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 43458 + ... + 44670.

Almost surely, 2^53449632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53449632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83288898).

53449632 is an abundant number, since it is smaller than the sum of its proper divisors (113128164).

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

53449632 is a wasteful number, since it uses less digits than its factorization.

53449632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252 (or 1235 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 53449632 is about 7310.9255228049. The cubic root of 53449632 is about 376.6878160086.

The spelling of 53449632 in words is "fifty-three million, four hundred forty-nine thousand, six hundred thirty-two".