1225503652 has 12 divisors (see below), whose sum is σ = 2145038896. Its totient is φ = 612635400.

The previous prime is 1225503637. The next prime is 1225503661. The reversal of 1225503652 is 2563055221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2778 + ... + 49585.

Almost surely, 2^1225503652 is an apocalyptic number.

It is an amenable number.

1225503652 is a deficient number, since it is larger than the sum of its proper divisors (919535244).

1225503652 is a wasteful number, since it uses less digits than its factorization.

1225503652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58218 (or 58216 counting only the distinct ones).

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

The square root of 1225503652 is about 35007.1942891743. The cubic root of 1225503652 is about 1070.1341002919.

Adding to 1225503652 its reverse (2563055221), we get a palindrome (3788558873).

The spelling of 1225503652 in words is "one billion, two hundred twenty-five million, five hundred three thousand, six hundred fifty-two".