25858061 has 4 divisors (see below), whose sum is σ = 26692224. Its totient is φ = 25023900.

The previous prime is 25858039. The next prime is 25858073. The reversal of 25858061 is 16085852.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25858061 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 (25858081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417035 + ... + 417096.

It is an arithmetic number, because the mean of its divisors is an integer number (6673056).

Almost surely, 2^25858061 is an apocalyptic number.

It is an amenable number.

25858061 is a deficient number, since it is larger than the sum of its proper divisors (834163).

25858061 is an equidigital number, since it uses as much as digits as its factorization.

25858061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834162.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 25858061 is about 5085.0822018921. The cubic root of 25858061 is about 295.7095283227.

The spelling of 25858061 in words is "twenty-five million, eight hundred fifty-eight thousand, sixty-one".