50513040 has 60 divisors (see below), whose sum is σ = 169642044. Its totient is φ = 13469952.

The previous prime is 50513033. The next prime is 50513051. The reversal of 50513040 is 4031505.

It can be written as a sum of positive squares in 2 ways, for example, as 12616704 + 37896336 = 3552^2 + 6156^2 .

It is a tau number, because it is divible by the number of its divisors (60).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34359 + ... + 35798.

Almost surely, 2^50513040 is an apocalyptic number.

It is an amenable number.

50513040 is an abundant number, since it is smaller than the sum of its proper divisors (119129004).

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

50513040 is a wasteful number, since it uses less digits than its factorization.

50513040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70176 (or 70167 counting only the distinct ones).

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

The square root of 50513040 is about 7107.2526337538. The cubic root of 50513040 is about 369.6589016150.

Adding to 50513040 its reverse (4031505), we get a palindrome (54544545).

The spelling of 50513040 in words is "fifty million, five hundred thirteen thousand, forty".