25074370217 has 16 divisors (see below), whose sum is σ = 27168598800. Its totient is φ = 23004214272.

The previous prime is 25074370213. The next prime is 25074370229. The reversal of 25074370217 is 71207347052.

It can be written as a sum of positive squares in 8 ways, for example, as 9001455376 + 16072914841 = 94876^2 + 126779^2 .

It is not a de Polignac number, because 25074370217 - 2² = 25074370213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25074370213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411253 + ... + 1428909.

It is an arithmetic number, because the mean of its divisors is an integer number (1698037425).

Almost surely, 2^25074370217 is an apocalyptic number.

It is an amenable number.

25074370217 is a deficient number, since it is larger than the sum of its proper divisors (2094228583).

25074370217 is a wasteful number, since it uses less digits than its factorization.

25074370217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18332.

The product of its (nonzero) digits is 82320, while the sum is 38.

The spelling of 25074370217 in words is "twenty-five billion, seventy-four million, three hundred seventy thousand, two hundred seventeen".