25101078325 has 12 divisors (see below), whose sum is σ = 32198625540. Its totient is φ = 19388418560.

The previous prime is 25101078287. The next prime is 25101078329. The reversal of 25101078325 is 52387010152.

It can be written as a sum of positive squares in 6 ways, for example, as 1211666481 + 23889411844 = 34809^2 + 154562^2 .

It is not a de Polignac number, because 25101078325 - 2²³ = 25092689717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25101078329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17310364 + ... + 17311813.

It is an arithmetic number, because the mean of its divisors is an integer number (2683218795).

Almost surely, 2^25101078325 is an apocalyptic number.

25101078325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25101078325 is a deficient number, since it is larger than the sum of its proper divisors (7097547215).

25101078325 is a wasteful number, since it uses less digits than its factorization.

25101078325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34622216 (or 34622211 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

Adding to 25101078325 its reverse (52387010152), we get a palindrome (77488088477).

The spelling of 25101078325 in words is "twenty-five billion, one hundred one million, seventy-eight thousand, three hundred twenty-five".