25749453753 has 6 divisors (see below), whose sum is σ = 37193655434. Its totient is φ = 17166302496.

The previous prime is 25749453731. The next prime is 25749453761. The reversal of 25749453753 is 35735494752.

25749453753 is a `hidden beast` number, since 2 + 57 + 4 + 9 + 4 + 537 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14949463824 + 10799989929 = 122268^2 + 103923^2 .

It is not a de Polignac number, because 25749453753 - 2⁶ = 25749453689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25749453753.

It is not an unprimeable number, because it can be changed into a prime (25749453953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1430525200 + ... + 1430525217.

Almost surely, 2^25749453753 is an apocalyptic number.

It is an amenable number.

25749453753 is a deficient number, since it is larger than the sum of its proper divisors (11444201681).

25749453753 is a wasteful number, since it uses less digits than its factorization.

25749453753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861050423 (or 2861050420 counting only the distinct ones).

The product of its digits is 15876000, while the sum is 54.

The spelling of 25749453753 in words is "twenty-five billion, seven hundred forty-nine million, four hundred fifty-three thousand, seven hundred fifty-three".