25483178361 has 4 divisors (see below), whose sum is σ = 33977571152. Its totient is φ = 16988785572.

The previous prime is 25483178299. The next prime is 25483178401. The reversal of 25483178361 is 16387138452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25483178361 - 2¹⁹ = 25482654073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25483178361.

It is not an unprimeable number, because it can be changed into a prime (25483178261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4247196391 + ... + 4247196396.

It is an arithmetic number, because the mean of its divisors is an integer number (8494392788).

Almost surely, 2^25483178361 is an apocalyptic number.

It is an amenable number.

25483178361 is a deficient number, since it is larger than the sum of its proper divisors (8494392791).

25483178361 is an equidigital number, since it uses as much as digits as its factorization.

25483178361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8494392790.

The product of its digits is 967680, while the sum is 48.

The spelling of 25483178361 in words is "twenty-five billion, four hundred eighty-three million, one hundred seventy-eight thousand, three hundred sixty-one".