25401131 has 8 divisors (see below), whose sum is σ = 30292224. Its totient is φ = 20825640.

The previous prime is 25401127. The next prime is 25401149. The reversal of 25401131 is 13110452.

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 25401131 - 2² = 25401127 is a prime.

It is a super-2 number, since 2×25401131² = 1290434912158322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25401161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78725 + ... + 79046.

It is an arithmetic number, because the mean of its divisors is an integer number (3786528).

Almost surely, 2^25401131 is an apocalyptic number.

25401131 is a deficient number, since it is larger than the sum of its proper divisors (4891093).

25401131 is a wasteful number, since it uses less digits than its factorization.

25401131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157801.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 25401131 is about 5039.9534720075. The cubic root of 25401131 is about 293.9573688321.

Adding to 25401131 its reverse (13110452), we get a palindrome (38511583).

The spelling of 25401131 in words is "twenty-five million, four hundred one thousand, one hundred thirty-one".