25189069 has 4 divisors (see below), whose sum is σ = 25202044. Its totient is φ = 25176096.

The previous prime is 25189049. The next prime is 25189103. The reversal of 25189069 is 96098152.

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 4368100 + 20820969 = 2090^2 + 4563^2 .

It is a cyclic number.

It is not a de Polignac number, because 25189069 - 2⁷ = 25188941 is a prime.

It is a super-2 number, since 2×25189069² = 1268978394173522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25189049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2922 + ... + 7675.

It is an arithmetic number, because the mean of its divisors is an integer number (6300511).

Almost surely, 2^25189069 is an apocalyptic number.

It is an amenable number.

25189069 is a deficient number, since it is larger than the sum of its proper divisors (12975).

25189069 is a wasteful number, since it uses less digits than its factorization.

25189069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12974.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 25189069 is about 5018.8712874510. The cubic root of 25189069 is about 293.1370448449.

The spelling of 25189069 in words is "twenty-five million, one hundred eighty-nine thousand, sixty-nine".