25632047 has 8 divisors (see below), whose sum is σ = 29892000. Its totient is φ = 21970032.

The previous prime is 25632041. The next prime is 25632059. The reversal of 25632047 is 74023652.

It is not a de Polignac number, because 25632047 - 2⁸ = 25631791 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 (25632041) 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, 37022 + ... + 37707.

It is an arithmetic number, because the mean of its divisors is an integer number (3736500).

Almost surely, 2^25632047 is an apocalyptic number.

25632047 is a deficient number, since it is larger than the sum of its proper divisors (4259953).

25632047 is an frugal number, since it uses more digits than its factorization.

25632047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74750 (or 74736 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 25632047 is about 5062.8101880280. The cubic root of 25632047 is about 294.8454500234.

Adding to 25632047 its reverse (74023652), we get a palindrome (99655699).

The spelling of 25632047 in words is "twenty-five million, six hundred thirty-two thousand, forty-seven".