25531412 has 12 divisors (see below), whose sum is σ = 44786196. Its totient is φ = 12735360.

The previous prime is 25531409. The next prime is 25531423. The reversal of 25531412 is 21413552.

It can be written as a sum of positive squares in 2 ways, for example, as 15007876 + 10523536 = 3874^2 + 3244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5639 + ... + 9102.

It is an arithmetic number, because the mean of its divisors is an integer number (3732183).

Almost surely, 2^25531412 is an apocalyptic number.

It is an amenable number.

25531412 is a deficient number, since it is larger than the sum of its proper divisors (19254784).

25531412 is a wasteful number, since it uses less digits than its factorization.

25531412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15178 (or 15176 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 25531412 is about 5052.8617633971. The cubic root of 25531412 is about 294.4590757757.

Adding to 25531412 its reverse (21413552), we get a palindrome (46944964).

The spelling of 25531412 in words is "twenty-five million, five hundred thirty-one thousand, four hundred twelve".