25662043 has 12 divisors (see below), whose sum is σ = 29436624. Its totient is φ = 22312400.

The previous prime is 25662037. The next prime is 25662059. The reversal of 25662043 is 34026652.

It is a happy number.

It is not a de Polignac number, because 25662043 - 2¹³ = 25653851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25662643) 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 11 ways as a sum of consecutive naturals, for example, 1828 + ... + 7393.

It is an arithmetic number, because the mean of its divisors is an integer number (2453052).

Almost surely, 2^25662043 is an apocalyptic number.

25662043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25662043 is a deficient number, since it is larger than the sum of its proper divisors (3774581).

25662043 is a wasteful number, since it uses less digits than its factorization.

25662043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9266 (or 9255 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 25662043 is about 5065.7717082395. The cubic root of 25662043 is about 294.9604198550.

Adding to 25662043 its reverse (34026652), we get a palindrome (59688695).

The spelling of 25662043 in words is "twenty-five million, six hundred sixty-two thousand, forty-three".