25484642 has 4 divisors (see below), whose sum is σ = 38226966. Its totient is φ = 12742320.

The previous prime is 25484633. The next prime is 25484647. The reversal of 25484642 is 24648452.

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

It can be written as a sum of positive squares in only one way, i.e., 21724921 + 3759721 = 4661^2 + 1939^2 .

It is not an unprimeable number, because it can be changed into a prime (25484647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6371159 + ... + 6371162.

Almost surely, 2^25484642 is an apocalyptic number.

25484642 is a deficient number, since it is larger than the sum of its proper divisors (12742324).

25484642 is a wasteful number, since it uses less digits than its factorization.

25484642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12742323.

The product of its digits is 61440, while the sum is 35.

The square root of 25484642 is about 5048.2315715506. The cubic root of 25484642 is about 294.2791631656.

The spelling of 25484642 in words is "twenty-five million, four hundred eighty-four thousand, six hundred forty-two".