25270705 has 16 divisors (see below), whose sum is σ = 30913344. Its totient is φ = 19828800.

The previous prime is 25270697. The next prime is 25270709. The reversal of 25270705 is 50707252.

It is not a de Polignac number, because 25270705 - 2³ = 25270697 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25270709) 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, 82162 + ... + 82468.

It is an arithmetic number, because the mean of its divisors is an integer number (1932084).

Almost surely, 2^25270705 is an apocalyptic number.

It is an amenable number.

25270705 is a deficient number, since it is larger than the sum of its proper divisors (5642639).

25270705 is a wasteful number, since it uses less digits than its factorization.

25270705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 25270705 is about 5026.9976128898. The cubic root of 25270705 is about 293.4533821928.

Adding to 25270705 its reverse (50707252), we get a palindrome (75977957).

The spelling of 25270705 in words is "twenty-five million, two hundred seventy thousand, seven hundred five".