50687490 has 64 divisors (see below), whose sum is σ = 141419520. Its totient is φ = 11386560.

The previous prime is 50687473. The next prime is 50687491. The reversal of 50687490 is 9478605.

It is not an unprimeable number, because it can be changed into a prime (50687491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10345 + ... + 14435.

It is an arithmetic number, because the mean of its divisors is an integer number (2209680).

Almost surely, 2^50687490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50687490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70709760).

50687490 is an abundant number, since it is smaller than the sum of its proper divisors (90732030).

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

50687490 is a wasteful number, since it uses less digits than its factorization.

50687490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 50687490 is about 7119.5147306540. The cubic root of 50687490 is about 370.0839595198.

The spelling of 50687490 in words is "fifty million, six hundred eighty-seven thousand, four hundred ninety".