25281123 has 8 divisors (see below), whose sum is σ = 38523648. Its totient is φ = 14446344.

The previous prime is 25281121. The next prime is 25281149. The reversal of 25281123 is 32118252.

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

It is not a de Polignac number, because 25281123 - 2¹ = 25281121 is a prime.

It is a super-2 number, since 2×25281123² = 1278270360282258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25281093 and 25281102.

It is not an unprimeable number, because it can be changed into a prime (25281121) 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, 601911 + ... + 601952.

It is an arithmetic number, because the mean of its divisors is an integer number (4815456).

Almost surely, 2^25281123 is an apocalyptic number.

25281123 is a deficient number, since it is larger than the sum of its proper divisors (13242525).

25281123 is a wasteful number, since it uses less digits than its factorization.

25281123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203873.

The product of its digits is 960, while the sum is 24.

The square root of 25281123 is about 5028.0337111042. The cubic root of 25281123 is about 293.4937026259.

Adding to 25281123 its reverse (32118252), we get a palindrome (57399375).

The spelling of 25281123 in words is "twenty-five million, two hundred eighty-one thousand, one hundred twenty-three".