1225001325 has 24 divisors (see below), whose sum is σ = 2095178400. Its totient is φ = 630804160.

The previous prime is 1225001273. The next prime is 1225001339. The reversal of 1225001325 is 5231005221.

It is not a de Polignac number, because 1225001325 - 2¹⁴ = 1224984941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279435 + ... + 283784.

It is an arithmetic number, because the mean of its divisors is an integer number (87299100).

Almost surely, 2^1225001325 is an apocalyptic number.

1225001325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225001325 is a deficient number, since it is larger than the sum of its proper divisors (870177075).

1225001325 is a wasteful number, since it uses less digits than its factorization.

1225001325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563261 (or 563256 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1225001325 is about 35000.0189285663. The cubic root of 1225001325 is about 1069.9878663427.

Adding to 1225001325 its reverse (5231005221), we get a palindrome (6456006546).

The spelling of 1225001325 in words is "one billion, two hundred twenty-five million, one thousand, three hundred twenty-five".