25611359 has 4 divisors (see below), whose sum is σ = 26207016. Its totient is φ = 25015704.

The previous prime is 25611343. The next prime is 25611361. The reversal of 25611359 is 95311652.

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 25611359 - 2⁴ = 25611343 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 (25611329) 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, 297764 + ... + 297849.

It is an arithmetic number, because the mean of its divisors is an integer number (6551754).

Almost surely, 2^25611359 is an apocalyptic number.

25611359 is a deficient number, since it is larger than the sum of its proper divisors (595657).

25611359 is an equidigital number, since it uses as much as digits as its factorization.

25611359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595656.

The product of its digits is 8100, while the sum is 32.

The square root of 25611359 is about 5060.7666415277. The cubic root of 25611359 is about 294.7661039808.

The spelling of 25611359 in words is "twenty-five million, six hundred eleven thousand, three hundred fifty-nine".