2572437409 has 4 divisors (see below), whose sum is σ = 2574542016. Its totient is φ = 2570332804.

The previous prime is 2572437391. The next prime is 2572437449. The reversal of 2572437409 is 9047342752.

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 a cyclic number.

It is not a de Polignac number, because 2572437409 - 2¹¹ = 2572435361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2572437449) 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, 1050469 + ... + 1052914.

It is an arithmetic number, because the mean of its divisors is an integer number (643635504).

Almost surely, 2^2572437409 is an apocalyptic number.

It is an amenable number.

2572437409 is a deficient number, since it is larger than the sum of its proper divisors (2104607).

2572437409 is a wasteful number, since it uses less digits than its factorization.

2572437409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104606.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 2572437409 is about 50719.2015808609. The cubic root of 2572437409 is about 1370.1925615988.

The spelling of 2572437409 in words is "two billion, five hundred seventy-two million, four hundred thirty-seven thousand, four hundred nine".