1250500050 has 54 divisors (see below), whose sum is σ = 3361693413. Its totient is φ = 333266640.

The previous prime is 1250500037. The next prime is 1250500051. The reversal of 1250500050 is 500050521.

It can be written as a sum of positive squares in 2 ways, for example, as 1225490049 + 25010001 = 35007^2 + 5001^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=25005.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1250499996 and 1250500032.

It is not an unprimeable number, because it can be changed into a prime (1250500051) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 749317 + ... + 750983.

It is a vampire number, since it can be written as 25005 ⋅ 50010 (with its own digits).

Almost surely, 2^1250500050 is an apocalyptic number.

1250500050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1250500050 is an abundant number, since it is smaller than the sum of its proper divisors (2111193363).

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

1250500050 is an equidigital number, since it uses as much as digits as its factorization.

1250500050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 1250500050 is about 35362.4101271392. The cubic root of 1250500050 is about 1077.3609692081.

Multiplying 1250500050 by its sum of digits (18), we get a square (22509000900 = 150030²).

1250500050 divided by its sum of digits (18) gives a square (69472225 = 8335²).

Adding to 1250500050 its reverse (500050521), we get a palindrome (1750550571).

The spelling of 1250500050 in words is "one billion, two hundred fifty million, five hundred thousand, fifty".