1230255625 has 45 divisors (see below), whose sum is σ = 1633851219. Its totient is φ = 925980000.

The previous prime is 1230255617. The next prime is 1230255647. The reversal of 1230255625 is 5265520321.

It is a happy number.

The square root of 1230255625 is 35075.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 1217381881 + 12873744 = 34891^2 + 3588^2 .

It is not a de Polignac number, because 1230255625 - 2³ = 1230255617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 20168095 + ... + 20168155.

Almost surely, 2^1230255625 is an apocalyptic number.

1230255625 is the 35075-th square number.

1230255625 is the 17538-th centered octagonal number.

It is an amenable number.

1230255625 is a deficient number, since it is larger than the sum of its proper divisors (403595594).

1230255625 is an frugal number, since it uses more digits than its factorization.

1230255625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The cubic root of 1230255625 is about 1071.5154887160.

Adding to 1230255625 its reverse (5265520321), we get a palindrome (6495775946).

The spelling of 1230255625 in words is "one billion, two hundred thirty million, two hundred fifty-five thousand, six hundred twenty-five".