50987489 has 12 divisors (see below), whose sum is σ = 59439600. Its totient is φ = 43609608.

The previous prime is 50987473. The next prime is 50987549. The reversal of 50987489 is 98478905.

It is not a de Polignac number, because 50987489 - 2⁴ = 50987473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50987429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31502 + ... + 33080.

It is an arithmetic number, because the mean of its divisors is an integer number (4953300).

Almost surely, 2^50987489 is an apocalyptic number.

It is an amenable number.

50987489 is a deficient number, since it is larger than the sum of its proper divisors (8452111).

50987489 is a wasteful number, since it uses less digits than its factorization.

50987489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252 (or 2245 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 50987489 is about 7140.5524296094. The cubic root of 50987489 is about 370.8126501559.

The spelling of 50987489 in words is "fifty million, nine hundred eighty-seven thousand, four hundred eighty-nine".