25403040040012 has 12 divisors (see below), whose sum is σ = 44666008792216. Its totient is φ = 12641323242240.

The previous prime is 25403040040009. The next prime is 25403040040033. The reversal of 25403040040012 is 21004004030452.

It is a happy number.

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, 15049193493 + ... + 15049195180.

Almost surely, 2^{25403040040012} is an apocalyptic number.

It is an amenable number.

25403040040012 is a deficient number, since it is larger than the sum of its proper divisors (19262968752204).

25403040040012 is a wasteful number, since it uses less digits than its factorization.

25403040040012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30098388888 (or 30098388886 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 25403040040012 its reverse (21004004030452), we get a palindrome (46407044070464).

The spelling of 25403040040012 in words is "twenty-five trillion, four hundred three billion, forty million, forty thousand, twelve".