25543532245 has 32 divisors (see below), whose sum is σ = 38255855616. Its totient is φ = 15906542400.

The previous prime is 25543532243. The next prime is 25543532251. The reversal of 25543532245 is 54223534552.

It is not a de Polignac number, because 25543532245 - 2¹ = 25543532243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25543532198 and 25543532207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25543532243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337990 + ... + 406600.

It is an arithmetic number, because the mean of its divisors is an integer number (1195495488).

Almost surely, 2^25543532245 is an apocalyptic number.

It is an amenable number.

25543532245 is a deficient number, since it is larger than the sum of its proper divisors (12712323371).

25543532245 is a wasteful number, since it uses less digits than its factorization.

25543532245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69601.

The product of its digits is 720000, while the sum is 40.

The spelling of 25543532245 in words is "twenty-five billion, five hundred forty-three million, five hundred thirty-two thousand, two hundred forty-five".