1255445612 has 12 divisors (see below), whose sum is σ = 2272789680. Its totient is φ = 606077136.

The previous prime is 1255445591. The next prime is 1255445621. The reversal of 1255445612 is 2165445521.

It is a super-2 number, since 2×1255445612² = 3152287369380109088, which contains 22 as substring.

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, 5411288 + ... + 5411519.

It is an arithmetic number, because the mean of its divisors is an integer number (189399140).

Almost surely, 2^1255445612 is an apocalyptic number.

It is an amenable number.

1255445612 is a deficient number, since it is larger than the sum of its proper divisors (1017344068).

1255445612 is a wasteful number, since it uses less digits than its factorization.

1255445612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10822840 (or 10822838 counting only the distinct ones).

The product of its digits is 48000, while the sum is 35.

The square root of 1255445612 is about 35432.2679488627. The cubic root of 1255445612 is about 1078.7793742726.

Subtracting 1255445612 from its reverse (2165445521), we obtain a palindrome (909999909).

The spelling of 1255445612 in words is "one billion, two hundred fifty-five million, four hundred forty-five thousand, six hundred twelve".