25145007 has 4 divisors (see below), whose sum is σ = 33526680. Its totient is φ = 16763336.

The previous prime is 25144997. The next prime is 25145009. The reversal of 25145007 is 70054152.

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 25145007 - 2⁴ = 25144991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25145009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4190832 + ... + 4190837.

It is an arithmetic number, because the mean of its divisors is an integer number (8381670).

Almost surely, 2^25145007 is an apocalyptic number.

25145007 is a deficient number, since it is larger than the sum of its proper divisors (8381673).

25145007 is an equidigital number, since it uses as much as digits as its factorization.

25145007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8381672.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 25145007 is about 5014.4797337311. The cubic root of 25145007 is about 292.9660216784.

Adding to 25145007 its reverse (70054152), we get a palindrome (95199159).

The spelling of 25145007 in words is "twenty-five million, one hundred forty-five thousand, seven".