2505069569 has 8 divisors (see below), whose sum is σ = 2534143080. Its totient is φ = 2476080000.

The previous prime is 2505069559. The next prime is 2505069577. The reversal of 2505069569 is 9659605052.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 630612544 + 1874457025 = 25112^2 + 43295^2 .

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 2505069569 - 2²⁰ = 2504020993 is a prime.

It is a super-2 number, since 2×2505069569² = 12550747091059691522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505069509) 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, 40067 + ... + 81335.

It is an arithmetic number, because the mean of its divisors is an integer number (316767885).

Almost surely, 2^2505069569 is an apocalyptic number.

It is an amenable number.

2505069569 is a deficient number, since it is larger than the sum of its proper divisors (29073511).

2505069569 is a wasteful number, since it uses less digits than its factorization.

2505069569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41971.

The product of its (nonzero) digits is 729000, while the sum is 47.

The square root of 2505069569 is about 50050.6700154953. The cubic root of 2505069569 is about 1358.1255840488.

The spelling of 2505069569 in words is "two billion, five hundred five million, sixty-nine thousand, five hundred sixty-nine".