25729563 has 4 divisors (see below), whose sum is σ = 34306088. Its totient is φ = 17153040.

The previous prime is 25729549. The next prime is 25729577. The reversal of 25729563 is 36592752.

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

It is an interprime number because it is at equal distance from previous prime (25729549) and next prime (25729577).

It is not a de Polignac number, because 25729563 - 2⁴ = 25729547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25729513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4288258 + ... + 4288263.

It is an arithmetic number, because the mean of its divisors is an integer number (8576522).

Almost surely, 2^25729563 is an apocalyptic number.

25729563 is a deficient number, since it is larger than the sum of its proper divisors (8576525).

25729563 is an equidigital number, since it uses as much as digits as its factorization.

25729563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8576524.

The product of its digits is 113400, while the sum is 39.

The square root of 25729563 is about 5072.4316653850. The cubic root of 25729563 is about 295.2188857160.

The spelling of 25729563 in words is "twenty-five million, seven hundred twenty-nine thousand, five hundred sixty-three".