12437407225 has 6 divisors (see below), whose sum is σ = 15422384990. Its totient is φ = 9949925760.

The previous prime is 12437407223. The next prime is 12437407249. The reversal of 12437407225 is 52270473421.

It can be written as a sum of positive squares in 3 ways, for example, as 47045881 + 12390361344 = 6859^2 + 111312^2 .

It is not a de Polignac number, because 12437407225 - 2¹ = 12437407223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12437407223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 248748120 + ... + 248748169.

Almost surely, 2^12437407225 is an apocalyptic number.

It is an amenable number.

12437407225 is a deficient number, since it is larger than the sum of its proper divisors (2984977765).

12437407225 is an equidigital number, since it uses as much as digits as its factorization.

12437407225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497496299 (or 497496294 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 12437407225 in words is "twelve billion, four hundred thirty-seven million, four hundred seven thousand, two hundred twenty-five".