25247204543 has 48 divisors (see below), whose sum is σ = 30460872960. Its totient is φ = 20815872000.

The previous prime is 25247204537. The next prime is 25247204561. The reversal of 25247204543 is 34540274252.

It is not a de Polignac number, because 25247204543 - 2⁴ = 25247204527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25247204497 and 25247204506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25247201543) 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, 17917823 + ... + 17919231.

It is an arithmetic number, because the mean of its divisors is an integer number (634601520).

Almost surely, 2^25247204543 is an apocalyptic number.

25247204543 is a deficient number, since it is larger than the sum of its proper divisors (5213668417).

25247204543 is a wasteful number, since it uses less digits than its factorization.

25247204543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760 (or 1749 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 38.

Adding to 25247204543 its reverse (34540274252), we get a palindrome (59787478795).

The spelling of 25247204543 in words is "twenty-five billion, two hundred forty-seven million, two hundred four thousand, five hundred forty-three".