25645772 has 12 divisors (see below), whose sum is σ = 44979480. Its totient is φ = 12794496.

The previous prime is 25645757. The next prime is 25645777. The reversal of 25645772 is 27754652.

It is a happy number.

25645772 is nontrivially palindromic in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25645777) 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, 4997 + ... + 8732.

It is an arithmetic number, because the mean of its divisors is an integer number (3748290).

Almost surely, 2^25645772 is an apocalyptic number.

It is an amenable number.

25645772 is a deficient number, since it is larger than the sum of its proper divisors (19333708).

25645772 is a wasteful number, since it uses less digits than its factorization.

25645772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14200 (or 14198 counting only the distinct ones).

The product of its digits is 117600, while the sum is 38.

The square root of 25645772 is about 5064.1654791288. The cubic root of 25645772 is about 294.8980668604.

The spelling of 25645772 in words is "twenty-five million, six hundred forty-five thousand, seven hundred seventy-two".