25749254671 has 8 divisors (see below), whose sum is σ = 29436016640. Its totient is φ = 22064566968.

The previous prime is 25749254659. The next prime is 25749254677. The reversal of 25749254671 is 17645294752.

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

It is a cyclic number.

It is not a de Polignac number, because 25749254671 - 2⁵ = 25749254639 is a prime.

It is a super-2 number, since 2×25749254671² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25749254677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491871 + ... + 541696.

It is an arithmetic number, because the mean of its divisors is an integer number (3679502080).

Almost surely, 2^25749254671 is an apocalyptic number.

25749254671 is a deficient number, since it is larger than the sum of its proper divisors (3686761969).

25749254671 is a wasteful number, since it uses less digits than its factorization.

25749254671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037133.

The product of its digits is 4233600, while the sum is 52.

The spelling of 25749254671 in words is "twenty-five billion, seven hundred forty-nine million, two hundred fifty-four thousand, six hundred seventy-one".