25823628 has 18 divisors (see below), whose sum is σ = 65276484. Its totient is φ = 8607864.

The previous prime is 25823621. The next prime is 25823639. The reversal of 25823628 is 82632852.

25823628 is a `hidden beast` number, since 2 + 5 + 8 + 23 + 628 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 717323 = 25823628 / (2 + 5 + 8 + 2 + 3 + 6 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 25823592 and 25823601.

It is not an unprimeable number, because it can be changed into a prime (25823621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358626 + ... + 358697.

Almost surely, 2^25823628 is an apocalyptic number.

It is an amenable number.

25823628 is an abundant number, since it is smaller than the sum of its proper divisors (39452856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25823628 is a wasteful number, since it uses less digits than its factorization.

25823628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717333 (or 717328 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 25823628 is about 5081.6953863844. The cubic root of 25823628 is about 295.5782128681.

The spelling of 25823628 in words is "twenty-five million, eight hundred twenty-three thousand, six hundred twenty-eight".