25090907 has 4 divisors (see below), whose sum is σ = 26181840. Its totient is φ = 23999976.

The previous prime is 25090883. The next prime is 25090927. The reversal of 25090907 is 70909052.

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

It is a cyclic number.

It is not a de Polignac number, because 25090907 - 2¹² = 25086811 is a prime.

It is a super-2 number, since 2×25090907² = 1259107228165298, which contains 22 as substring.

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 (25090927) 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, 545432 + ... + 545477.

It is an arithmetic number, because the mean of its divisors is an integer number (6545460).

Almost surely, 2^25090907 is an apocalyptic number.

25090907 is a deficient number, since it is larger than the sum of its proper divisors (1090933).

25090907 is a wasteful number, since it uses less digits than its factorization.

25090907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090932.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 25090907 is about 5009.0824509085. The cubic root of 25090907 is about 292.7557633397.

Adding to 25090907 its reverse (70909052), we get a palindrome (95999959).

The spelling of 25090907 in words is "twenty-five million, ninety thousand, nine hundred seven".