1252236400556 has 12 divisors (see below), whose sum is σ = 2191460822880. Its totient is φ = 626104736880.

The previous prime is 1252236400477. The next prime is 1252236400561. The reversal of 1252236400556 is 6550046322521.

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, 3155111 + ... + 3529758.

It is an arithmetic number, because the mean of its divisors is an integer number (182621735240).

Almost surely, 2^{1252236400556} is an apocalyptic number.

It is an amenable number.

1252236400556 is a deficient number, since it is larger than the sum of its proper divisors (939224422324).

1252236400556 is a wasteful number, since it uses less digits than its factorization.

1252236400556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6731704 (or 6731702 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 1252236400556 in words is "one trillion, two hundred fifty-two billion, two hundred thirty-six million, four hundred thousand, five hundred fifty-six".