25450434 has 24 divisors (see below), whose sum is σ = 55293420. Its totient is φ = 8460288.

The previous prime is 25450387. The next prime is 25450457. The reversal of 25450434 is 43405452.

It can be written as a sum of positive squares in 2 ways, for example, as 25250625 + 199809 = 5025^2 + 447^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25450398 and 25450407.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5634 + ... + 9090.

Almost surely, 2^25450434 is an apocalyptic number.

25450434 is an abundant number, since it is smaller than the sum of its proper divisors (29842986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25450434 is a wasteful number, since it uses less digits than its factorization.

25450434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874 (or 3871 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 25450434 is about 5044.8423166636. The cubic root of 25450434 is about 294.1474340357.

Adding to 25450434 its reverse (43405452), we get a palindrome (68855886).

The spelling of 25450434 in words is "twenty-five million, four hundred fifty thousand, four hundred thirty-four".