25070709 has 16 divisors (see below), whose sum is σ = 35294400. Its totient is φ = 15785856.

The previous prime is 25070707. The next prime is 25070711. The reversal of 25070709 is 90707052.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25070707) and next prime (25070711).

It is not a de Polignac number, because 25070709 - 2¹ = 25070707 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25070707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32047 + ... + 32819.

It is an arithmetic number, because the mean of its divisors is an integer number (2205900).

Almost surely, 2^25070709 is an apocalyptic number.

It is an amenable number.

25070709 is a deficient number, since it is larger than the sum of its proper divisors (10223691).

25070709 is a wasteful number, since it uses less digits than its factorization.

25070709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 25070709 is about 5007.0659072954. The cubic root of 25070709 is about 292.6771868222.

The spelling of 25070709 in words is "twenty-five million, seventy thousand, seven hundred nine".