50135040 has 204 divisors, whose sum is σ = 184023684. Its totient is φ = 12582912.

The previous prime is 50135027. The next prime is 50135047. The reversal of 50135040 is 4053105.

It can be written as a sum of positive squares in 2 ways, for example, as 28901376 + 21233664 = 5376^2 + 4608^2 .

It is a tau number, because it is divible by the number of its divisors (204).

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50135047) 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, 2949112 + ... + 2949128.

Almost surely, 2^50135040 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 50135040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92011842).

50135040 is an abundant number, since it is smaller than the sum of its proper divisors (133888644).

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

50135040 is an equidigital number, since it uses as much as digits as its factorization.

50135040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 50135040 is about 7080.6101432009. The cubic root of 50135040 is about 368.7345128035.

Adding to 50135040 its reverse (4053105), we get a palindrome (54188145).

The spelling of 50135040 in words is "fifty million, one hundred thirty-five thousand, forty".