12025505554 has 8 divisors (see below), whose sum is σ = 18620137728. Its totient is φ = 5818792980.

The previous prime is 12025505549. The next prime is 12025505563. The reversal of 12025505554 is 45550552021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12025505554² (a number of 21 digits) 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, 96979822 + ... + 96979945.

It is an arithmetic number, because the mean of its divisors is an integer number (2327517216).

Almost surely, 2^12025505554 is an apocalyptic number.

12025505554 is a deficient number, since it is larger than the sum of its proper divisors (6594632174).

12025505554 is a wasteful number, since it uses less digits than its factorization.

12025505554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193959800.

The product of its (nonzero) digits is 50000, while the sum is 34.

The spelling of 12025505554 in words is "twelve billion, twenty-five million, five hundred five thousand, five hundred fifty-four".