1225024925 has 24 divisors (see below), whose sum is σ = 1541050920. Its totient is φ = 965888000.

The previous prime is 1225024907. The next prime is 1225024951. The reversal of 1225024925 is 5294205221.

It can be written as a sum of positive squares in 12 ways, for example, as 444889 + 1224580036 = 667^2 + 34994^2 .

It is not a de Polignac number, because 1225024925 - 2¹² = 1225020829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1225024891 and 1225024900.

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 23 ways as a sum of consecutive naturals, for example, 891539 + ... + 892911.

It is an arithmetic number, because the mean of its divisors is an integer number (64210455).

Almost surely, 2^1225024925 is an apocalyptic number.

It is an amenable number.

1225024925 is a deficient number, since it is larger than the sum of its proper divisors (316025995).

1225024925 is a wasteful number, since it uses less digits than its factorization.

1225024925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873 (or 1868 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1225024925 is about 35000.3560696173. The cubic root of 1225024925 is about 1069.9947375058.

The spelling of 1225024925 in words is "one billion, two hundred twenty-five million, twenty-four thousand, nine hundred twenty-five".