25372005 has 16 divisors (see below), whose sum is σ = 40698240. Its totient is φ = 13497408.

The previous prime is 25371991. The next prime is 25372019. The reversal of 25372005 is 50027352.

It is an interprime number because it is at equal distance from previous prime (25371991) and next prime (25372019).

It is not a de Polignac number, because 25372005 - 2¹⁰ = 25370981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4659 + ... + 8511.

It is an arithmetic number, because the mean of its divisors is an integer number (2543640).

Almost surely, 2^25372005 is an apocalyptic number.

It is an amenable number.

25372005 is a deficient number, since it is larger than the sum of its proper divisors (15326235).

25372005 is a wasteful number, since it uses less digits than its factorization.

25372005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 25372005 is about 5037.0631324215. The cubic root of 25372005 is about 293.8449712535.

Adding to 25372005 its reverse (50027352), we get a palindrome (75399357).

The spelling of 25372005 in words is "twenty-five million, three hundred seventy-two thousand, five".