25450131 has 8 divisors (see below), whose sum is σ = 38781184. Its totient is φ = 14542920.

The previous prime is 25450093. The next prime is 25450141. The reversal of 25450131 is 13105452.

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

It is a de Polignac number, because none of the positive numbers 2^k-25450131 is a prime.

It is a super-2 number, since 2×25450131² = 1295418335834322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1211911 = 25450131 / (2 + 5 + 4 + 5 + 0 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25450098 and 25450107.

It is not an unprimeable number, because it can be changed into a prime (25450141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605935 + ... + 605976.

It is an arithmetic number, because the mean of its divisors is an integer number (4847648).

Almost surely, 2^25450131 is an apocalyptic number.

25450131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25450131 is a deficient number, since it is larger than the sum of its proper divisors (13331053).

25450131 is a wasteful number, since it uses less digits than its factorization.

25450131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211921.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 25450131 is about 5044.8122859032. The cubic root of 25450131 is about 294.1462667076.

Adding to 25450131 its reverse (13105452), we get a palindrome (38555583).

The spelling of 25450131 in words is "twenty-five million, four hundred fifty thousand, one hundred thirty-one".