25267668601 has 12 divisors (see below), whose sum is σ = 30187464832. Its totient is φ = 20716346376.

The previous prime is 25267668581. The next prime is 25267668611. The reversal of 25267668601 is 10686676252.

It is a happy number.

It is not a de Polignac number, because 25267668601 - 2¹³ = 25267660409 is a prime.

It is a super-2 number, since 2×25267668601² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25267668611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3408081 + ... + 3415486.

Almost surely, 2^25267668601 is an apocalyptic number.

It is an amenable number.

25267668601 is a deficient number, since it is larger than the sum of its proper divisors (4919796231).

25267668601 is an equidigital number, since it uses as much as digits as its factorization.

25267668601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6823620 (or 6823597 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 25267668601 in words is "twenty-five billion, two hundred sixty-seven million, six hundred sixty-eight thousand, six hundred one".