25390189 has 4 divisors (see below), whose sum is σ = 27698400. Its totient is φ = 23081980.

The previous prime is 25390171. The next prime is 25390201. The reversal of 25390189 is 98109352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25390189 - 2¹¹ = 25388141 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 (25390139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154089 + ... + 1154110.

It is an arithmetic number, because the mean of its divisors is an integer number (6924600).

Almost surely, 2^25390189 is an apocalyptic number.

It is an amenable number.

25390189 is a deficient number, since it is larger than the sum of its proper divisors (2308211).

25390189 is a wasteful number, since it uses less digits than its factorization.

25390189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308210.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 25390189 is about 5038.8678291854. The cubic root of 25390189 is about 293.9151536056.

The spelling of 25390189 in words is "twenty-five million, three hundred ninety thousand, one hundred eighty-nine".