11555351425 has 6 divisors (see below), whose sum is σ = 14328635798. Its totient is φ = 9244281120.

The previous prime is 11555351419. The next prime is 11555351461. The reversal of 11555351425 is 52415355511.

It can be written as a sum of positive squares in 3 ways, for example, as 4116633921 + 7438717504 = 64161^2 + 86248^2 .

It is not a de Polignac number, because 11555351425 - 2⁵ = 11555351393 is a prime.

It is a super-2 number, since 2×11555351425² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 231107004 + ... + 231107053.

Almost surely, 2^11555351425 is an apocalyptic number.

It is an amenable number.

11555351425 is a deficient number, since it is larger than the sum of its proper divisors (2773284373).

11555351425 is an equidigital number, since it uses as much as digits as its factorization.

11555351425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462214067 (or 462214062 counting only the distinct ones).

The product of its digits is 75000, while the sum is 37.

The spelling of 11555351425 in words is "eleven billion, five hundred fifty-five million, three hundred fifty-one thousand, four hundred twenty-five".