50042540 has 24 divisors (see below), whose sum is σ = 107535120. Its totient is φ = 19551168.

The previous prime is 50042539. The next prime is 50042557. The reversal of 50042540 is 4524005.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28235 + ... + 29954.

It is an arithmetic number, because the mean of its divisors is an integer number (4480630).

Almost surely, 2^50042540 is an apocalyptic number.

It is an amenable number.

50042540 is an abundant number, since it is smaller than the sum of its proper divisors (57492580).

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

50042540 is a wasteful number, since it uses less digits than its factorization.

50042540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58241 (or 58239 counting only the distinct ones).

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

The square root of 50042540 is about 7074.0752045762. The cubic root of 50042540 is about 368.5075993811.

Adding to 50042540 its reverse (4524005), we get a palindrome (54566545).

The spelling of 50042540 in words is "fifty million, forty-two thousand, five hundred forty".