50720144 has 20 divisors (see below), whose sum is σ = 100362624. Its totient is φ = 24820128.

The previous prime is 50720143. The next prime is 50720149. The reversal of 50720144 is 44102705.

It is not an unprimeable number, because it can be changed into a prime (50720141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32972 + ... + 34475.

Almost surely, 2^50720144 is an apocalyptic number.

It is an amenable number.

50720144 is a deficient number, since it is larger than the sum of its proper divisors (49642480).

50720144 is a wasteful number, since it uses less digits than its factorization.

50720144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67502 (or 67496 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 50720144 is about 7121.8076357060. The cubic root of 50720144 is about 370.1634145455.

Adding to 50720144 its reverse (44102705), we get a palindrome (94822849).

The spelling of 50720144 in words is "fifty million, seven hundred twenty thousand, one hundred forty-four".