25855061 has 4 divisors (see below), whose sum is σ = 25868832. Its totient is φ = 25841292.

The previous prime is 25855031. The next prime is 25855111. The reversal of 25855061 is 16055852.

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 not a de Polignac number, because 25855061 - 2²² = 21660757 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 (25855031) 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, 3521 + ... + 8006.

It is an arithmetic number, because the mean of its divisors is an integer number (6467208).

Almost surely, 2^25855061 is an apocalyptic number.

It is an amenable number.

25855061 is a deficient number, since it is larger than the sum of its proper divisors (13771).

25855061 is a wasteful number, since it uses less digits than its factorization.

25855061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13770.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 25855061 is about 5084.7872128537. The cubic root of 25855061 is about 295.6980920064.

The spelling of 25855061 in words is "twenty-five million, eight hundred fifty-five thousand, sixty-one".