53647944 has 112 divisors (see below), whose sum is σ = 164708400. Its totient is φ = 14521248.

The previous prime is 53647939. The next prime is 53647991. The reversal of 53647944 is 44974635.

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (362880) is a multiple of the sum of its prime factors (70).

It is a junction number, because it is equal to n+sod(n) for n = 53647896 and 53647905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2823567 + ... + 2823585.

Almost surely, 2^53647944 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 53647944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82354200).

53647944 is an abundant number, since it is smaller than the sum of its proper divisors (111060456).

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

53647944 is an frugal number, since it uses more digits than its factorization.

53647944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 31 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 53647944 is about 7324.4756808935. The cubic root of 53647944 is about 377.1531108651.

The spelling of 53647944 in words is "fifty-three million, six hundred forty-seven thousand, nine hundred forty-four".