1223056552 has 32 divisors (see below), whose sum is σ = 2314620000. Its totient is φ = 605844288.

The previous prime is 1223056481. The next prime is 1223056561. The reversal of 1223056552 is 2556503221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731974 + ... + 733642.

It is an arithmetic number, because the mean of its divisors is an integer number (72331875).

Almost surely, 2^1223056552 is an apocalyptic number.

It is an amenable number.

1223056552 is a deficient number, since it is larger than the sum of its proper divisors (1091563448).

1223056552 is a wasteful number, since it uses less digits than its factorization.

1223056552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473 (or 2469 counting only the distinct ones).

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

The square root of 1223056552 is about 34972.2254367662. The cubic root of 1223056552 is about 1069.4213402436.

Adding to 1223056552 its reverse (2556503221), we get a palindrome (3779559773).

The spelling of 1223056552 in words is "one billion, two hundred twenty-three million, fifty-six thousand, five hundred fifty-two".