50140140 has 48 divisors (see below), whose sum is σ = 148653792. Its totient is φ = 12583936.

The previous prime is 50140121. The next prime is 50140151. The reversal of 50140140 is 4104105.

50140140 = 2500² + 2501² + ... + 2507².

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23559 + ... + 25598.

It is an arithmetic number, because the mean of its divisors is an integer number (3096954).

Almost surely, 2^50140140 is an apocalyptic number.

It is an amenable number.

50140140 is an abundant number, since it is smaller than the sum of its proper divisors (98513652).

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

50140140 is a wasteful number, since it uses less digits than its factorization.

50140140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49186 (or 49184 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 50140140 is about 7080.9702724980. The cubic root of 50140140 is about 368.7470155844.

Adding to 50140140 its reverse (4104105), we get a palindrome (54244245).

The spelling of 50140140 in words is "fifty million, one hundred forty thousand, one hundred forty".