2572808509 has 8 divisors (see below), whose sum is σ = 2764810368. Its totient is φ = 2385324480.

The previous prime is 2572808501. The next prime is 2572808531. The reversal of 2572808509 is 9058082752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2572808509 - 2³ = 2572808501 is a prime.

It is a super-3 number, since 3×2572808509³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2572808501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128277 + ... + 1130554.

It is an arithmetic number, because the mean of its divisors is an integer number (345601296).

Almost surely, 2^2572808509 is an apocalyptic number.

It is an amenable number.

2572808509 is a deficient number, since it is larger than the sum of its proper divisors (192001859).

2572808509 is a wasteful number, since it uses less digits than its factorization.

2572808509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258915.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 2572808509 is about 50722.8598267093. The cubic root of 2572808509 is about 1370.2584464555.

The spelling of 2572808509 in words is "two billion, five hundred seventy-two million, eight hundred eight thousand, five hundred nine".