25484643 has 12 divisors (see below), whose sum is σ = 38748840. Its totient is φ = 16095456.

The previous prime is 25484633. The next prime is 25484647. The reversal of 25484643 is 34648452.

25484643 is a `hidden beast` number, since 2 + 5 + 4 + 8 + 4 + 643 = 666.

It is not a de Polignac number, because 25484643 - 2⁵ = 25484611 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 25484598 and 25484607.

It is not an unprimeable number, because it can be changed into a prime (25484647) 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 11 ways as a sum of consecutive naturals, for example, 74346 + ... + 74687.

It is an arithmetic number, because the mean of its divisors is an integer number (3229070).

Almost surely, 2^25484643 is an apocalyptic number.

25484643 is a deficient number, since it is larger than the sum of its proper divisors (13264197).

25484643 is a wasteful number, since it uses less digits than its factorization.

25484643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149058 (or 149055 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 25484643 is about 5048.2316705952. The cubic root of 25484643 is about 294.2791670147.

The spelling of 25484643 in words is "twenty-five million, four hundred eighty-four thousand, six hundred forty-three".