25355039 has 4 divisors (see below), whose sum is σ = 26457456. Its totient is φ = 24252624.

The previous prime is 25355021. The next prime is 25355051. The reversal of 25355039 is 93055352.

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

It is a cyclic number.

It is not a de Polignac number, because 25355039 - 2¹⁶ = 25289503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25354996 and 25355014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25355069) 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 3 ways as a sum of consecutive naturals, for example, 551174 + ... + 551219.

It is an arithmetic number, because the mean of its divisors is an integer number (6614364).

Almost surely, 2^25355039 is an apocalyptic number.

25355039 is a deficient number, since it is larger than the sum of its proper divisors (1102417).

25355039 is a wasteful number, since it uses less digits than its factorization.

25355039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102416.

The product of its (nonzero) digits is 20250, while the sum is 32.

The square root of 25355039 is about 5035.3787345144. The cubic root of 25355039 is about 293.7794596077.

The spelling of 25355039 in words is "twenty-five million, three hundred fifty-five thousand, thirty-nine".