25405130 has 8 divisors (see below), whose sum is σ = 45729252. Its totient is φ = 10162048.

The previous prime is 25405111. The next prime is 25405141. The reversal of 25405130 is 3150452.

It can be written as a sum of positive squares in 2 ways, for example, as 24019801 + 1385329 = 4901^2 + 1177^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270247 + ... + 1270266.

Almost surely, 2^25405130 is an apocalyptic number.

25405130 is a deficient number, since it is larger than the sum of its proper divisors (20324122).

25405130 is a wasteful number, since it uses less digits than its factorization.

25405130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540520.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 25405130 is about 5040.3501862470. The cubic root of 25405130 is about 293.9727943110.

Adding to 25405130 its reverse (3150452), we get a palindrome (28555582).

The spelling of 25405130 in words is "twenty-five million, four hundred five thousand, one hundred thirty".