25608957 has 8 divisors (see below), whose sum is σ = 37249440. Its totient is φ = 15520560.

The previous prime is 25608931. The next prime is 25608971. The reversal of 25608957 is 75980652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25608957 - 2¹⁹ = 25084669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25608917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387982 + ... + 388047.

It is an arithmetic number, because the mean of its divisors is an integer number (4656180).

Almost surely, 2^25608957 is an apocalyptic number.

It is an amenable number.

25608957 is a deficient number, since it is larger than the sum of its proper divisors (11640483).

25608957 is a wasteful number, since it uses less digits than its factorization.

25608957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776043.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 25608957 is about 5060.5293201403. The cubic root of 25608957 is about 294.7568886646.

It can be divided in two parts, 25608 and 957, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 25608957 in words is "twenty-five million, six hundred eight thousand, nine hundred fifty-seven".