25020667 has 4 divisors (see below), whose sum is σ = 28595056. Its totient is φ = 21446280.

The previous prime is 25020647. The next prime is 25020673. The reversal of 25020667 is 76602052.

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

It is a cyclic number.

It is not a de Polignac number, because 25020667 - 2¹⁵ = 24987899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25020647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1787184 + ... + 1787197.

It is an arithmetic number, because the mean of its divisors is an integer number (7148764).

Almost surely, 2^25020667 is an apocalyptic number.

25020667 is a deficient number, since it is larger than the sum of its proper divisors (3574389).

25020667 is an equidigital number, since it uses as much as digits as its factorization.

25020667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574388.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 25020667 is about 5002.0662730516. The cubic root of 25020667 is about 292.4823258612.

The spelling of 25020667 in words is "twenty-five million, twenty thousand, six hundred sixty-seven".