25628077 has 4 divisors (see below), whose sum is σ = 25740220. Its totient is φ = 25515936.

The previous prime is 25628033. The next prime is 25628081. The reversal of 25628077 is 77082652.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24314761 + 1313316 = 4931^2 + 1146^2 .

It is a cyclic number.

It is not a de Polignac number, because 25628077 - 2⁷ = 25627949 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 (25628177) 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, 55728 + ... + 56185.

It is an arithmetic number, because the mean of its divisors is an integer number (6435055).

Almost surely, 2^25628077 is an apocalyptic number.

It is an amenable number.

25628077 is a deficient number, since it is larger than the sum of its proper divisors (112143).

25628077 is a wasteful number, since it uses less digits than its factorization.

25628077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112142.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 25628077 is about 5062.4180981029. The cubic root of 25628077 is about 294.8302269334.

The spelling of 25628077 in words is "twenty-five million, six hundred twenty-eight thousand, seventy-seven".