25242667 has 4 divisors (see below), whose sum is σ = 25253136. Its totient is φ = 25232200.

The previous prime is 25242653. The next prime is 25242689. The reversal of 25242667 is 76624252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25242667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25243667) 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, 417 + ... + 7117.

It is an arithmetic number, because the mean of its divisors is an integer number (6313284).

Almost surely, 2^25242667 is an apocalyptic number.

25242667 is a deficient number, since it is larger than the sum of its proper divisors (10469).

25242667 is an equidigital number, since it uses as much as digits as its factorization.

25242667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10468.

The product of its digits is 40320, while the sum is 34.

The square root of 25242667 is about 5024.2080968049. The cubic root of 25242667 is about 293.3448125960.

The spelling of 25242667 in words is "twenty-five million, two hundred forty-two thousand, six hundred sixty-seven".