25262049168 has 30 divisors (see below), whose sum is σ = 70698651894. Its totient is φ = 8420683008.

The previous prime is 25262049101. The next prime is 25262049227. The reversal of 25262049168 is 86194026252.

25262049168 is a `hidden beast` number, since 2 + 5 + 2 + 620 + 4 + 9 + 16 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22485602304 + 2776446864 = 149952^2 + 52692^2 .

It is a super-2 number, since 2×25262049168² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87715305 + ... + 87715592.

Almost surely, 2^25262049168 is an apocalyptic number.

It is an amenable number.

25262049168 is an abundant number, since it is smaller than the sum of its proper divisors (45436602726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25262049168 is a wasteful number, since it uses less digits than its factorization.

25262049168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175430911 (or 175430902 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 25262049168 in words is "twenty-five billion, two hundred sixty-two million, forty-nine thousand, one hundred sixty-eight".