25528943 has 18 divisors (see below), whose sum is σ = 29091888. Its totient is φ = 22375320.

The previous prime is 25528933. The next prime is 25528957. The reversal of 25528943 is 34982552.

It is not a de Polignac number, because 25528943 - 2¹⁴ = 25512559 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 25528897 and 25528906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25528933) 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 17 ways as a sum of consecutive naturals, for example, 380996 + ... + 381062.

It is an arithmetic number, because the mean of its divisors is an integer number (1616216).

Almost surely, 2^25528943 is an apocalyptic number.

25528943 is a deficient number, since it is larger than the sum of its proper divisors (3562945).

25528943 is an equidigital number, since it uses as much as digits as its factorization.

25528943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 125 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 25528943 is about 5052.6174404956. The cubic root of 25528943 is about 294.4495836398.

The spelling of 25528943 in words is "twenty-five million, five hundred twenty-eight thousand, nine hundred forty-three".