25189061 has 4 divisors (see below), whose sum is σ = 25233900. Its totient is φ = 25144224.

The previous prime is 25189049. The next prime is 25189103. The reversal of 25189061 is 16098152.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16248961 + 8940100 = 4031^2 + 2990^2 .

It is a cyclic number.

It is not a de Polignac number, because 25189061 - 2⁶ = 25188997 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 (25189001) 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, 21566 + ... + 22703.

It is an arithmetic number, because the mean of its divisors is an integer number (6308475).

Almost surely, 2^25189061 is an apocalyptic number.

It is an amenable number.

25189061 is a deficient number, since it is larger than the sum of its proper divisors (44839).

25189061 is an equidigital number, since it uses as much as digits as its factorization.

25189061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44838.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 25189061 is about 5018.8704904590. The cubic root of 25189061 is about 293.1370138117.

Subtracting from 25189061 its reverse (16098152), we obtain a palindrome (9090909).

The spelling of 25189061 in words is "twenty-five million, one hundred eighty-nine thousand, sixty-one".