25457484843 has 48 divisors (see below), whose sum is σ = 44135400960. Its totient is φ = 14459900112.

The previous prime is 25457484839. The next prime is 25457484869. The reversal of 25457484843 is 34848475452.

25457484843 is a `hidden beast` number, since 25 + 4 + 574 + 8 + 4 + 8 + 43 = 666.

It is not a de Polignac number, because 25457484843 - 2² = 25457484839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25457484843.

It is not an unprimeable number, because it can be changed into a prime (25457484803) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163330 + ... + 278552.

It is an arithmetic number, because the mean of its divisors is an integer number (919487520).

Almost surely, 2^25457484843 is an apocalyptic number.

25457484843 is a deficient number, since it is larger than the sum of its proper divisors (18677916117).

25457484843 is a wasteful number, since it uses less digits than its factorization.

25457484843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115413 (or 115400 counting only the distinct ones).

The product of its digits is 17203200, while the sum is 54.

The spelling of 25457484843 in words is "twenty-five billion, four hundred fifty-seven million, four hundred eighty-four thousand, eight hundred forty-three".