25545713 has 4 divisors (see below), whose sum is σ = 27048420. Its totient is φ = 24043008.

The previous prime is 25545703. The next prime is 25545719. The reversal of 25545713 is 31754552.

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 12054784 + 13490929 = 3472^2 + 3673^2 .

It is a cyclic number.

It is not a de Polignac number, because 25545713 - 2⁶ = 25545649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25545713.

It is not an unprimeable number, because it can be changed into a prime (25545719) 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, 751328 + ... + 751361.

It is an arithmetic number, because the mean of its divisors is an integer number (6762105).

Almost surely, 2^25545713 is an apocalyptic number.

It is an amenable number.

25545713 is a deficient number, since it is larger than the sum of its proper divisors (1502707).

25545713 is a wasteful number, since it uses less digits than its factorization.

25545713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502706.

The product of its digits is 21000, while the sum is 32.

The square root of 25545713 is about 5054.2767039409. The cubic root of 25545713 is about 294.5140443145.

The spelling of 25545713 in words is "twenty-five million, five hundred forty-five thousand, seven hundred thirteen".