25322451145 has 12 divisors (see below), whose sum is σ = 30555950220. Its totient is φ = 20145908160.

The previous prime is 25322451131. The next prime is 25322451149. The reversal of 25322451145 is 54115422352.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 10598084809 + 14724366336 = 102947^2 + 121344^2 .

It is not a de Polignac number, because 25322451145 - 2¹⁵ = 25322418377 is a prime.

It is a super-2 number, since 2×25322451145² (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 25322451145.

It is not an unprimeable number, because it can be changed into a prime (25322451149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86511 + ... + 241099.

It is an arithmetic number, because the mean of its divisors is an integer number (2546329185).

Almost surely, 2^25322451145 is an apocalyptic number.

It is an amenable number.

25322451145 is a deficient number, since it is larger than the sum of its proper divisors (5233499075).

25322451145 is an equidigital number, since it uses as much as digits as its factorization.

25322451145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154956 (or 154775 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

Adding to 25322451145 its reverse (54115422352), we get a palindrome (79437873497).

The spelling of 25322451145 in words is "twenty-five billion, three hundred twenty-two million, four hundred fifty-one thousand, one hundred forty-five".