25531411 has 4 divisors (see below), whose sum is σ = 25621912. Its totient is φ = 25440912.

The previous prime is 25531409. The next prime is 25531423. The reversal of 25531411 is 11413552.

It is a happy number.

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 25531411 - 2¹ = 25531409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25531111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44826 + ... + 45391.

It is an arithmetic number, because the mean of its divisors is an integer number (6405478).

Almost surely, 2^25531411 is an apocalyptic number.

25531411 is a deficient number, since it is larger than the sum of its proper divisors (90501).

25531411 is an equidigital number, since it uses as much as digits as its factorization.

25531411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90500.

The product of its digits is 600, while the sum is 22.

The square root of 25531411 is about 5052.8616644432. The cubic root of 25531411 is about 294.4590719313.

Adding to 25531411 its reverse (11413552), we get a palindrome (36944963).

The spelling of 25531411 in words is "twenty-five million, five hundred thirty-one thousand, four hundred eleven".