25403030452 has 6 divisors (see below), whose sum is σ = 44455303298. Its totient is φ = 12701515224.

The previous prime is 25403030441. The next prime is 25403030459.

25403030452 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 14554974736 + 10848055716 = 120644^2 + 104154^2 .

It is a super-2 number, since 2×25403030452² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25403030452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25403030459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3175378803 + ... + 3175378810.

Almost surely, 2^25403030452 is an apocalyptic number.

It is an amenable number.

25403030452 is a deficient number, since it is larger than the sum of its proper divisors (19052272846).

25403030452 is a wasteful number, since it uses less digits than its factorization.

25403030452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6350757617 (or 6350757615 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

It can be divided in two parts, 254030 and 30452, that added together give a palindrome (284482).

The spelling of 25403030452 in words is "twenty-five billion, four hundred three million, thirty thousand, four hundred fifty-two".