2565005141 has 4 divisors (see below), whose sum is σ = 2627566284. Its totient is φ = 2502444000.

The previous prime is 2565005123. The next prime is 2565005147. The reversal of 2565005141 is 1415005652.

It is a happy number.

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 1159130116 + 1405875025 = 34046^2 + 37495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2565005141 - 2⁶ = 2565005077 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 (2565005147) 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, 31280510 + ... + 31280591.

It is an arithmetic number, because the mean of its divisors is an integer number (656891571).

Almost surely, 2^2565005141 is an apocalyptic number.

It is an amenable number.

2565005141 is a deficient number, since it is larger than the sum of its proper divisors (62561143).

2565005141 is an equidigital number, since it uses as much as digits as its factorization.

2565005141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62561142.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 2565005141 is about 50645.8798028033. The cubic root of 2565005141 is about 1368.8717051528.

The spelling of 2565005141 in words is "two billion, five hundred sixty-five million, five thousand, one hundred forty-one".