25388607122 has 18 divisors (see below), whose sum is σ = 38311754247. Its totient is φ = 12618477324.

The previous prime is 25388607103. The next prime is 25388607131. The reversal of 25388607122 is 22170688352.

It can be written as a sum of positive squares in only one way, i.e., 12694303561 + 12694303561 = 112669^2 + 112669^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=112669.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 69178583 + ... + 69178949.

Almost surely, 2^25388607122 is an apocalyptic number.

25388607122 is a deficient number, since it is larger than the sum of its proper divisors (12923147125).

25388607122 is an frugal number, since it uses more digits than its factorization.

25388607122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 25388607122 in words is "twenty-five billion, three hundred eighty-eight million, six hundred seven thousand, one hundred twenty-two".