25144031 has 4 divisors (see below), whose sum is σ = 27429864. Its totient is φ = 22858200.

The previous prime is 25144019. The next prime is 25144033. The reversal of 25144031 is 13044152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25144031 - 2¹⁴ = 25127647 is a prime.

It is a super-2 number, since 2×25144031² = 1264444589857922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25143994 and 25144012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25144033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142900 + ... + 1142921.

It is an arithmetic number, because the mean of its divisors is an integer number (6857466).

Almost surely, 2^25144031 is an apocalyptic number.

25144031 is the 2243-rd centered decagonal number.

25144031 is a deficient number, since it is larger than the sum of its proper divisors (2285833).

25144031 is a wasteful number, since it uses less digits than its factorization.

25144031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285832.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 25144031 is about 5014.3824146150. The cubic root of 25144031 is about 292.9622311507.

Adding to 25144031 its reverse (13044152), we get a palindrome (38188183).

The spelling of 25144031 in words is "twenty-five million, one hundred forty-four thousand, thirty-one".