1225351552 has 16 divisors (see below), whose sum is σ = 2441130300. Its totient is φ = 612675712.

The previous prime is 1225351537. The next prime is 1225351571. The reversal of 1225351552 is 2551535221.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4786402 + ... + 4786657.

Almost surely, 2^1225351552 is an apocalyptic number.

It is an amenable number.

1225351552 is a deficient number, since it is larger than the sum of its proper divisors (1215778748).

1225351552 is an frugal number, since it uses more digits than its factorization.

1225351552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9573073 (or 9573061 counting only the distinct ones).

The product of its digits is 15000, while the sum is 31.

The square root of 1225351552 is about 35005.0218111630. The cubic root of 1225351552 is about 1070.0898262144.

Adding to 1225351552 its reverse (2551535221), we get a palindrome (3776886773).

The spelling of 1225351552 in words is "one billion, two hundred twenty-five million, three hundred fifty-one thousand, five hundred fifty-two".