2565972151 has 4 divisors (see below), whose sum is σ = 2570530392. Its totient is φ = 2561413912.

The previous prime is 2565972139. The next prime is 2565972181. The reversal of 2565972151 is 1512795652.

2565972151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2565972151 - 2³¹ = 418488503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2565972098 and 2565972107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565972181) 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, 2278276 + ... + 2279401.

It is an arithmetic number, because the mean of its divisors is an integer number (642632598).

Almost surely, 2^2565972151 is an apocalyptic number.

2565972151 is a deficient number, since it is larger than the sum of its proper divisors (4558241).

2565972151 is an equidigital number, since it uses as much as digits as its factorization.

2565972151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558240.

The product of its digits is 189000, while the sum is 43.

The square root of 2565972151 is about 50655.4256817569. The cubic root of 2565972151 is about 1369.0437056288.

The spelling of 2565972151 in words is "two billion, five hundred sixty-five million, nine hundred seventy-two thousand, one hundred fifty-one".