25201129 has 8 divisors (see below), whose sum is σ = 25796232. Its totient is φ = 24610560.

The previous prime is 25201097. The next prime is 25201177. The reversal of 25201129 is 92110252.

It can be written as a sum of positive squares in 4 ways, for example, as 5531904 + 19669225 = 2352^2 + 4435^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25201129 - 2⁵ = 25201097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25201199) 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, 11787 + ... + 13759.

It is an arithmetic number, because the mean of its divisors is an integer number (3224529).

Almost surely, 2^25201129 is an apocalyptic number.

It is an amenable number.

25201129 is a deficient number, since it is larger than the sum of its proper divisors (595103).

25201129 is a wasteful number, since it uses less digits than its factorization.

25201129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 25201129 is about 5020.0726090366. The cubic root of 25201129 is about 293.1838200117.

The spelling of 25201129 in words is "twenty-five million, two hundred one thousand, one hundred twenty-nine".