50690140 has 24 divisors (see below), whose sum is σ = 106600032. Its totient is φ = 20247360.

The previous prime is 50690131. The next prime is 50690147. The reversal of 50690140 is 4109605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50690147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18030 + ... + 20650.

It is an arithmetic number, because the mean of its divisors is an integer number (4441668).

Almost surely, 2^50690140 is an apocalyptic number.

It is an amenable number.

50690140 is an abundant number, since it is smaller than the sum of its proper divisors (55909892).

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

50690140 is a wasteful number, since it uses less digits than its factorization.

50690140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597 (or 3595 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 50690140 is about 7119.7008364116. The cubic root of 50690140 is about 370.0904088785.

Adding to 50690140 its reverse (4109605), we get a palindrome (54799745).

The spelling of 50690140 in words is "fifty million, six hundred ninety thousand, one hundred forty".