12733994025 has 27 divisors (see below), whose sum is σ = 22811030359. Its totient is φ = 6790560720.

The previous prime is 12733994017. The next prime is 12733994057. The reversal of 12733994025 is 52049933721.

The square root of 12733994025 is 112845.

It is a perfect power (a square), and thus also a powerful number.

12733994025 is a `hidden beast` number, since 127 + 33 + 99 + 402 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4584237849 + 8149756176 = 67707^2 + 90276^2 .

It is not a de Polignac number, because 12733994025 - 2³ = 12733994017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1688914 + ... + 1696436.

Almost surely, 2^12733994025 is an apocalyptic number.

12733994025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12733994025 is the 112845-th square number.

12733994025 is the 56423-rd centered octagonal number.

It is an amenable number.

12733994025 is a deficient number, since it is larger than the sum of its proper divisors (10077036334).

12733994025 is an frugal number, since it uses more digits than its factorization.

12733994025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15062 (or 7531 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 12733994025 in words is "twelve billion, seven hundred thirty-three million, nine hundred ninety-four thousand, twenty-five".