25130181 has 8 divisors (see below), whose sum is σ = 34587904. Its totient is φ = 16212960.

The previous prime is 25130173. The next prime is 25130201. The reversal of 25130181 is 18103152.

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

It is not a de Polignac number, because 25130181 - 2³ = 25130173 is a prime.

It is a super-2 number, since 2×25130181² = 1263051994185522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25130381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135016 + ... + 135201.

It is an arithmetic number, because the mean of its divisors is an integer number (4323488).

Almost surely, 2^25130181 is an apocalyptic number.

It is an amenable number.

25130181 is a deficient number, since it is larger than the sum of its proper divisors (9457723).

25130181 is a wasteful number, since it uses less digits than its factorization.

25130181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270251.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 25130181 is about 5013.0011968879. The cubic root of 25130181 is about 292.9084308123.

The spelling of 25130181 in words is "twenty-five million, one hundred thirty thousand, one hundred eighty-one".