25472531 has 8 divisors (see below), whose sum is σ = 29182464. Its totient is φ = 21780360.

The previous prime is 25472519. The next prime is 25472549. The reversal of 25472531 is 13527452.

It is a happy number.

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

It is not a de Polignac number, because 25472531 - 2⁶ = 25472467 is a prime.

It is a super-2 number, since 2×25472531² = 1297699671091922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25472494 and 25472503.

It is not an unprimeable number, because it can be changed into a prime (25472561) 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, 1205 + ... + 7238.

It is an arithmetic number, because the mean of its divisors is an integer number (3647808).

Almost surely, 2^25472531 is an apocalyptic number.

25472531 is a deficient number, since it is larger than the sum of its proper divisors (3709933).

25472531 is an equidigital number, since it uses as much as digits as its factorization.

25472531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8881.

The product of its digits is 8400, while the sum is 29.

The square root of 25472531 is about 5047.0319000379. The cubic root of 25472531 is about 294.2325392726.

Adding to 25472531 its reverse (13527452), we get a palindrome (38999983).

The spelling of 25472531 in words is "twenty-five million, four hundred seventy-two thousand, five hundred thirty-one".