1625356225 has 12 divisors (see below), whose sum is σ = 2033935420. Its totient is φ = 1288353600.

The previous prime is 1625356223. The next prime is 1625356307. The reversal of 1625356225 is 5226535261.

It can be written as a sum of positive squares in 6 ways, for example, as 73547776 + 1551808449 = 8576^2 + 39393^2 .

It is not a de Polignac number, because 1625356225 - 2¹ = 1625356223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1625356223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 295506 + ... + 300955.

Almost surely, 2^1625356225 is an apocalyptic number.

It is an amenable number.

1625356225 is a deficient number, since it is larger than the sum of its proper divisors (408579195).

1625356225 is a wasteful number, since it uses less digits than its factorization.

1625356225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596580 (or 596575 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

The square root of 1625356225 is about 40315.7069267054. The cubic root of 1625356225 is about 1175.7532457067.

The spelling of 1625356225 in words is "one billion, six hundred twenty-five million, three hundred fifty-six thousand, two hundred twenty-five".