25725189 has 8 divisors (see below), whose sum is σ = 39200320. Its totient is φ = 14700096.

The previous prime is 25725187. The next prime is 25725191. The reversal of 25725189 is 98152752.

It is an interprime number because it is at equal distance from previous prime (25725187) and next prime (25725191).

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

It is not a de Polignac number, because 25725189 - 2¹ = 25725187 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 (25725187) 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, 612484 + ... + 612525.

It is an arithmetic number, because the mean of its divisors is an integer number (4900040).

Almost surely, 2^25725189 is an apocalyptic number.

It is an amenable number.

25725189 is a deficient number, since it is larger than the sum of its proper divisors (13475131).

25725189 is a wasteful number, since it uses less digits than its factorization.

25725189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225019.

The product of its digits is 50400, while the sum is 39.

The square root of 25725189 is about 5072.0004929022. Note that the first 3 decimals coincide. The cubic root of 25725189 is about 295.2021557961.

It can be divided in two parts, 25725 and 189, that multiplied together give a square (4862025 = 2205²).

The spelling of 25725189 in words is "twenty-five million, seven hundred twenty-five thousand, one hundred eighty-nine".