12505133572 has 6 divisors (see below), whose sum is σ = 21883983758. Its totient is φ = 6252566784.

The previous prime is 12505133551. The next prime is 12505133609. The reversal of 12505133572 is 27533150521.

It can be written as a sum of positive squares in only one way, i.e., 7959137796 + 4545995776 = 89214^2 + 67424^2 .

It is a super-2 number, since 2×12505133572² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1563141693 + ... + 1563141700.

Almost surely, 2^12505133572 is an apocalyptic number.

It is an amenable number.

12505133572 is a deficient number, since it is larger than the sum of its proper divisors (9378850186).

12505133572 is a wasteful number, since it uses less digits than its factorization.

12505133572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3126283397 (or 3126283395 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The spelling of 12505133572 in words is "twelve billion, five hundred five million, one hundred thirty-three thousand, five hundred seventy-two".