2572564123 has 4 divisors (see below), whose sum is σ = 2572849728. Its totient is φ = 2572278520.

The previous prime is 2572564121. The next prime is 2572564177. The reversal of 2572564123 is 3214652752.

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 2572564123 - 2¹ = 2572564121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2572564121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128836 + ... + 147457.

It is an arithmetic number, because the mean of its divisors is an integer number (643212432).

Almost surely, 2^2572564123 is an apocalyptic number.

2572564123 is a deficient number, since it is larger than the sum of its proper divisors (285605).

2572564123 is an equidigital number, since it uses as much as digits as its factorization.

2572564123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285604.

The product of its digits is 100800, while the sum is 37.

The square root of 2572564123 is about 50720.4507373505. The cubic root of 2572564123 is about 1370.2150590337.

The spelling of 2572564123 in words is "two billion, five hundred seventy-two million, five hundred sixty-four thousand, one hundred twenty-three".