1252225320 has 64 divisors (see below), whose sum is σ = 3789961920. Its totient is φ = 330968064.

The previous prime is 1252225279. The next prime is 1252225339. The reversal of 1252225320 is 235222521.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 15 ways as a sum of consecutive naturals, for example, 32614 + ... + 59733.

It is an arithmetic number, because the mean of its divisors is an integer number (59218155).

Almost surely, 2^1252225320 is an apocalyptic number.

1252225320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252225320 is an abundant number, since it is smaller than the sum of its proper divisors (2537736600).

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

1252225320 is a wasteful number, since it uses less digits than its factorization.

1252225320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92474 (or 92470 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1252225320 is about 35386.7958425173. The cubic root of 1252225320 is about 1077.8562069338.

Adding to 1252225320 its reverse (235222521), we get a palindrome (1487447841).

The spelling of 1252225320 in words is "one billion, two hundred fifty-two million, two hundred twenty-five thousand, three hundred twenty".