50540240 has 20 divisors (see below), whose sum is σ = 117506244. Its totient is φ = 20216064.

The previous prime is 50540239. The next prime is 50540251. The reversal of 50540240 is 4204505.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36820624 + 13719616 = 6068^2 + 3704^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 315797 + ... + 315956.

Almost surely, 2^50540240 is an apocalyptic number.

It is an amenable number.

50540240 is an abundant number, since it is smaller than the sum of its proper divisors (66966004).

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

50540240 is a wasteful number, since it uses less digits than its factorization.

50540240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631766 (or 631760 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 50540240 is about 7109.1659145078. The cubic root of 50540240 is about 369.7252403791.

Adding to 50540240 its reverse (4204505), we get a palindrome (54744745).

The spelling of 50540240 in words is "fifty million, five hundred forty thousand, two hundred forty".