25255917674 has 8 divisors (see below), whose sum is σ = 40798020900. Its totient is φ = 11656577376.

The previous prime is 25255917649. The next prime is 25255917679. The reversal of 25255917674 is 47671955252.

It can be written as a sum of positive squares in 2 ways, for example, as 25253977225 + 1940449 = 158915^2 + 1393^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×25255917674² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25255917679) 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 3 ways as a sum of consecutive naturals, for example, 485690699 + ... + 485690750.

Almost surely, 2^25255917674 is an apocalyptic number.

25255917674 is a deficient number, since it is larger than the sum of its proper divisors (15542103226).

25255917674 is a wasteful number, since it uses less digits than its factorization.

25255917674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971381464.

The product of its digits is 5292000, while the sum is 53.

The spelling of 25255917674 in words is "twenty-five billion, two hundred fifty-five million, nine hundred seventeen thousand, six hundred seventy-four".