50575644 has 144 divisors (see below), whose sum is σ = 160876800. Its totient is φ = 13662432.

The previous prime is 50575631. The next prime is 50575661. The reversal of 50575644 is 44657505.

It is a happy number.

50575644 is a `hidden beast` number, since 5 + 0 + 5 + 7 + 5 + 644 = 666.

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 = 50575599 and 50575608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100297 + ... + 100799.

It is an arithmetic number, because the mean of its divisors is an integer number (1117200).

Almost surely, 2^50575644 is an apocalyptic number.

50575644 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50575644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80438400).

50575644 is an abundant number, since it is smaller than the sum of its proper divisors (110301156).

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

50575644 is a wasteful number, since it uses less digits than its factorization.

50575644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 50575644 is about 7111.6555034675. The cubic root of 50575644 is about 369.8115524418.

It can be divided in two parts, 5057 and 5644, that added together give a palindrome (10701).

The spelling of 50575644 in words is "fifty million, five hundred seventy-five thousand, six hundred forty-four".