25070101745 has 16 divisors (see below), whose sum is σ = 32444040720. Its totient is φ = 18487160064.

The previous prime is 25070101709. The next prime is 25070101747. The reversal of 25070101745 is 54710107052.

It can be written as a sum of positive squares in 8 ways, for example, as 7071464464 + 17998637281 = 84092^2 + 134159^2 .

It is a cyclic number.

It is not a de Polignac number, because 25070101745 - 2⁶ = 25070101681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25070101747) 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 15 ways as a sum of consecutive naturals, for example, 225914 + ... + 318083.

It is an arithmetic number, because the mean of its divisors is an integer number (2027752545).

Almost surely, 2^25070101745 is an apocalyptic number.

It is an amenable number.

25070101745 is a deficient number, since it is larger than the sum of its proper divisors (7373938975).

25070101745 is a wasteful number, since it uses less digits than its factorization.

25070101745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544724.

The product of its (nonzero) digits is 9800, while the sum is 32.

Adding to 25070101745 its reverse (54710107052), we get a palindrome (79780208797).

The spelling of 25070101745 in words is "twenty-five billion, seventy million, one hundred one thousand, seven hundred forty-five".