25404372647072 has 12 divisors (see below), whose sum is σ = 50014858648986. Its totient is φ = 12702186323520.

The previous prime is 25404372647063. The next prime is 25404372647089. The reversal of 25404372647072 is 27074627340452.

It can be written as a sum of positive squares in only one way, i.e., 13257725725456 + 12146646921616 = 3641116^2 + 3485204^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396943322579 + ... + 396943322642.

Almost surely, 2^{25404372647072} is an apocalyptic number.

It is an amenable number.

25404372647072 is a deficient number, since it is larger than the sum of its proper divisors (24610486001914).

25404372647072 is an equidigital number, since it uses as much as digits as its factorization.

25404372647072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793886645231 (or 793886645223 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 53.

The spelling of 25404372647072 in words is "twenty-five trillion, four hundred four billion, three hundred seventy-two million, six hundred forty-seven thousand, seventy-two".