25726057067 has 4 divisors (see below), whose sum is σ = 26110028136. Its totient is φ = 25342086000.

The previous prime is 25726057009. The next prime is 25726057081. The reversal of 25726057067 is 76075062752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25726057067 - 2⁶ = 25726057003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25726057367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191985434 + ... + 191985567.

It is an arithmetic number, because the mean of its divisors is an integer number (6527507034).

Almost surely, 2^25726057067 is an apocalyptic number.

25726057067 is a deficient number, since it is larger than the sum of its proper divisors (383971069).

25726057067 is an equidigital number, since it uses as much as digits as its factorization.

25726057067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383971068.

The product of its (nonzero) digits is 1234800, while the sum is 47.

The spelling of 25726057067 in words is "twenty-five billion, seven hundred twenty-six million, fifty-seven thousand, sixty-seven".