25707453061 has 4 divisors (see below), whose sum is σ = 25730224300. Its totient is φ = 25684681824.

The previous prime is 25707453029. The next prime is 25707453103. The reversal of 25707453061 is 16035470752.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8938757025 + 16768696036 = 94545^2 + 129494^2 .

It is a cyclic number.

It is not a de Polignac number, because 25707453061 - 2⁵ = 25707453029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25707453461) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11383926 + ... + 11386183.

It is an arithmetic number, because the mean of its divisors is an integer number (6432556075).

Almost surely, 2^25707453061 is an apocalyptic number.

It is an amenable number.

25707453061 is a deficient number, since it is larger than the sum of its proper divisors (22771239).

25707453061 is a wasteful number, since it uses less digits than its factorization.

25707453061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22771238.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 25707453061 in words is "twenty-five billion, seven hundred seven million, four hundred fifty-three thousand, sixty-one".