25777055 has 8 divisors (see below), whose sum is σ = 31043472. Its totient is φ = 20547648.

The previous prime is 25777051. The next prime is 25777079. The reversal of 25777055 is 55077752.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25777055 - 2² = 25777051 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 (25777051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7694 + ... + 10523.

It is an arithmetic number, because the mean of its divisors is an integer number (3880434).

Almost surely, 2^25777055 is an apocalyptic number.

25777055 is a deficient number, since it is larger than the sum of its proper divisors (5266417).

25777055 is a wasteful number, since it uses less digits than its factorization.

25777055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18505.

The product of its (nonzero) digits is 85750, while the sum is 38.

The square root of 25777055 is about 5077.1108910482. The cubic root of 25777055 is about 295.4004138376.

The spelling of 25777055 in words is "twenty-five million, seven hundred seventy-seven thousand, fifty-five".