25420513141 has 4 divisors (see below), whose sum is σ = 25423799692. Its totient is φ = 25417226592.

The previous prime is 25420513099. The next prime is 25420513147. The reversal of 25420513141 is 14131502452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25133346225 + 287166916 = 158535^2 + 16946^2 .

It is a cyclic number.

It is not a de Polignac number, because 25420513141 - 2¹⁵ = 25420480373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25420513147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631646 + ... + 1647151.

It is an arithmetic number, because the mean of its divisors is an integer number (6355949923).

Almost surely, 2^25420513141 is an apocalyptic number.

It is an amenable number.

25420513141 is a deficient number, since it is larger than the sum of its proper divisors (3286551).

25420513141 is an equidigital number, since it uses as much as digits as its factorization.

25420513141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286550.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 25420513141 in words is "twenty-five billion, four hundred twenty million, five hundred thirteen thousand, one hundred forty-one".