50012500 has 36 divisors (see below), whose sum is σ = 109422684. Its totient is φ = 20000000.

The previous prime is 50012491. The next prime is 50012513. The reversal of 50012500 is 521005.

50012500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 49056016 + 956484 = 7004^2 + 978^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10500 + ... + 14500.

It is an arithmetic number, because the mean of its divisors is an integer number (3039519).

Almost surely, 2^50012500 is an apocalyptic number.

50012500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50012500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54711342).

50012500 is an abundant number, since it is smaller than the sum of its proper divisors (59410184).

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

50012500 is an equidigital number, since it uses as much as digits as its factorization.

50012500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030 (or 4008 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 50012500 is about 7071.9516401061. The cubic root of 50012500 is about 368.4338475685.

Adding to 50012500 its reverse (521005), we get a palindrome (50533505).

It can be divided in two parts, 5001 and 2500, that multiplied together give a triangular number (12502500 = T₅₀₀₀).

The spelling of 50012500 in words is "fifty million, twelve thousand, five hundred".