25473251043 has 48 divisors (see below), whose sum is σ = 38436091200. Its totient is φ = 16236702720.

The previous prime is 25473251033. The next prime is 25473251047. The reversal of 25473251043 is 34015237452.

25473251043 is a `hidden beast` number, since 2 + 547 + 3 + 2 + 5 + 104 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-25473251043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25473250989 and 25473251007.

It is not an unprimeable number, because it can be changed into a prime (25473251047) 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, 22562103 + ... + 22563231.

It is an arithmetic number, because the mean of its divisors is an integer number (800751900).

Almost surely, 2^25473251043 is an apocalyptic number.

25473251043 is a deficient number, since it is larger than the sum of its proper divisors (12962840157).

25473251043 is a wasteful number, since it uses less digits than its factorization.

25473251043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

Adding to 25473251043 its reverse (34015237452), we get a palindrome (59488488495).

The spelling of 25473251043 in words is "twenty-five billion, four hundred seventy-three million, two hundred fifty-one thousand, forty-three".