25017007 has 4 divisors (see below), whose sum is σ = 25489080. Its totient is φ = 24544936.

The previous prime is 25017001. The next prime is 25017023. The reversal of 25017007 is 70071052.

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

It is not a de Polignac number, because 25017007 - 2²³ = 16628399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25017001) 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, 235957 + ... + 236062.

It is an arithmetic number, because the mean of its divisors is an integer number (6372270).

Almost surely, 2^25017007 is an apocalyptic number.

25017007 is a deficient number, since it is larger than the sum of its proper divisors (472073).

25017007 is an equidigital number, since it uses as much as digits as its factorization.

25017007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472072.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 25017007 is about 5001.7004108603. The cubic root of 25017007 is about 292.4680638179.

Adding to 25017007 its reverse (70071052), we get a palindrome (95088059).

The spelling of 25017007 in words is "twenty-five million, seventeen thousand, seven".