25630452045 has 96 divisors (see below), whose sum is σ = 49725995904. Its totient is φ = 12107404800.

The previous prime is 25630451993. The next prime is 25630452047. The reversal of 25630452045 is 54025403652.

25630452045 is a `hidden beast` number, since 2 + 563 + 0 + 4 + 52 + 0 + 45 = 666.

It is not a de Polignac number, because 25630452045 - 2⁸ = 25630451789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25630452047) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3226899 + ... + 3234831.

It is an arithmetic number, because the mean of its divisors is an integer number (517979124).

Almost surely, 2^25630452045 is an apocalyptic number.

It is an amenable number.

25630452045 is a deficient number, since it is larger than the sum of its proper divisors (24095543859).

25630452045 is a wasteful number, since it uses less digits than its factorization.

25630452045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123 (or 8120 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 25630452045 its reverse (54025403652), we get a palindrome (79655855697).

The spelling of 25630452045 in words is "twenty-five billion, six hundred thirty million, four hundred fifty-two thousand, forty-five".