12551500004 has 6 divisors (see below), whose sum is σ = 21965125014. Its totient is φ = 6275750000.

The previous prime is 12551500001. The next prime is 12551500009. The reversal of 12551500004 is 40000515521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7602096100 + 4949403904 = 87190^2 + 70352^2 .

It is not an unprimeable number, because it can be changed into a prime (12551500001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1568937497 + ... + 1568937504.

It is an arithmetic number, because the mean of its divisors is an integer number (3660854169).

Almost surely, 2^12551500004 is an apocalyptic number.

It is an amenable number.

12551500004 is a deficient number, since it is larger than the sum of its proper divisors (9413625010).

12551500004 is a wasteful number, since it uses less digits than its factorization.

12551500004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137875005 (or 3137875003 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The spelling of 12551500004 in words is "twelve billion, five hundred fifty-one million, five hundred thousand, four".