1425772516556 has 12 divisors (see below), whose sum is σ = 2495116990968. Its totient is φ = 712881947712.

The previous prime is 1425772516547. The next prime is 1425772516559. The reversal of 1425772516556 is 6556152775241.

It is a super-2 number, since 2×1425772516556² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1425772516559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265406 + ... + 1709381.

It is an arithmetic number, because the mean of its divisors is an integer number (207926415914).

Almost surely, 2^{1425772516556} is an apocalyptic number.

It is an amenable number.

1425772516556 is a deficient number, since it is larger than the sum of its proper divisors (1069344474412).

1425772516556 is a wasteful number, since it uses less digits than its factorization.

1425772516556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155288 (or 2155286 counting only the distinct ones).

The product of its digits is 17640000, while the sum is 56.

The spelling of 1425772516556 in words is "one trillion, four hundred twenty-five billion, seven hundred seventy-two million, five hundred sixteen thousand, five hundred fifty-six".