25306970 has 32 divisors (see below), whose sum is σ = 49995792. Its totient is φ = 9165312.

The previous prime is 25306961. The next prime is 25306979. The reversal of 25306970 is 7960352.

It is an interprime number because it is at equal distance from previous prime (25306961) and next prime (25306979).

It can be written as a sum of positive squares in 8 ways, for example, as 3301489 + 22005481 = 1817^2 + 4691^2 .

It is not an unprimeable number, because it can be changed into a prime (25306979) by changing a digit.

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, 5054 + ... + 8726.

Almost surely, 2^25306970 is an apocalyptic number.

25306970 is a deficient number, since it is larger than the sum of its proper divisors (24688822).

25306970 is a wasteful number, since it uses less digits than its factorization.

25306970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 25306970 is about 5030.6033435364. The cubic root of 25306970 is about 293.5936895866.

The spelling of 25306970 in words is "twenty-five million, three hundred six thousand, nine hundred seventy".