25375389 has 16 divisors (see below), whose sum is σ = 36796032. Its totient is φ = 15461568.

The previous prime is 25375387. The next prime is 25375403. The reversal of 25375389 is 98357352.

It is not a de Polignac number, because 25375389 - 2¹ = 25375387 is a prime.

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 25375389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25375381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859 + ... + 7175.

It is an arithmetic number, because the mean of its divisors is an integer number (2299752).

Almost surely, 2^25375389 is an apocalyptic number.

It is an amenable number.

25375389 is a deficient number, since it is larger than the sum of its proper divisors (11420643).

25375389 is a wasteful number, since it uses less digits than its factorization.

25375389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6436.

The product of its digits is 226800, while the sum is 42.

The square root of 25375389 is about 5037.3990312462. The cubic root of 25375389 is about 293.8580345646.

The spelling of 25375389 in words is "twenty-five million, three hundred seventy-five thousand, three hundred eighty-nine".