53044632 has 80 divisors (see below), whose sum is σ = 150136800. Its totient is φ = 17496000.

The previous prime is 53044631. The next prime is 53044633. The reversal of 53044632 is 23644035.

It is an interprime number because it is at equal distance from previous prime (53044631) and next prime (53044633).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 53044596 and 53044605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53044631) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 70257 + ... + 71007.

It is an arithmetic number, because the mean of its divisors is an integer number (1876710).

Almost surely, 2^53044632 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 53044632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75068400).

53044632 is an abundant number, since it is smaller than the sum of its proper divisors (97092168).

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

53044632 is a wasteful number, since it uses less digits than its factorization.

53044632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 53044632 is about 7283.1745825567. The cubic root of 53044632 is about 375.7339864331.

Adding to 53044632 its reverse (23644035), we get a palindrome (76688667).

The spelling of 53044632 in words is "fifty-three million, forty-four thousand, six hundred thirty-two".