50503644 has 36 divisors (see below), whose sum is σ = 128648520. Its totient is φ = 16704480.

The previous prime is 50503643. The next prime is 50503657. The reversal of 50503644 is 44630505.

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

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50503643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 639 + ... + 10070.

It is an arithmetic number, because the mean of its divisors is an integer number (3573570).

Almost surely, 2^50503644 is an apocalyptic number.

It is an amenable number.

50503644 is an abundant number, since it is smaller than the sum of its proper divisors (78144876).

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

50503644 is a wasteful number, since it uses less digits than its factorization.

50503644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10850 (or 10845 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 50503644 is about 7106.5915880962. The cubic root of 50503644 is about 369.6359799403.

The spelling of 50503644 in words is "fifty million, five hundred three thousand, six hundred forty-four".