1252225200 has 60 divisors (see below), whose sum is σ = 4011298568. Its totient is φ = 333926400.

The previous prime is 1252225199. The next prime is 1252225213. The reversal of 1252225200 is 25222521.

It is a tau number, because it is divible by the number of its divisors (60).

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, 520561 + ... + 522960.

Almost surely, 2^1252225200 is an apocalyptic number.

1252225200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252225200 is an abundant number, since it is smaller than the sum of its proper divisors (2759073368).

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

1252225200 is a wasteful number, since it uses less digits than its factorization.

1252225200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043542 (or 1043531 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1252225200 is about 35386.7941469696. The cubic root of 1252225200 is about 1077.8561725037.

Adding to 1252225200 its reverse (25222521), we get a palindrome (1277447721).

The spelling of 1252225200 in words is "one billion, two hundred fifty-two million, two hundred twenty-five thousand, two hundred".