2505470769 has 6 divisors (see below), whose sum is σ = 3619013346. Its totient is φ = 1670313840.

The previous prime is 2505470767. The next prime is 2505470771. The reversal of 2505470769 is 9670745052.

2505470769 is a `hidden beast` number, since 2 + 505 + 4 + 70 + 76 + 9 = 666.

2505470769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2505470767) and next prime (2505470771).

It can be written as a sum of positive squares in only one way, i.e., 2332890000 + 172580769 = 48300^2 + 13137^2 .

It is not a de Polignac number, because 2505470769 - 2¹ = 2505470767 is a prime.

It is a super-2 number, since 2×2505470769² = 12554767548626902722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2505470767) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139192812 + ... + 139192829.

It is an arithmetic number, because the mean of its divisors is an integer number (603168891).

Almost surely, 2^2505470769 is an apocalyptic number.

It is an amenable number.

2505470769 is a deficient number, since it is larger than the sum of its proper divisors (1113542577).

2505470769 is a wasteful number, since it uses less digits than its factorization.

2505470769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278385647 (or 278385644 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The square root of 2505470769 is about 50054.6777933891. The cubic root of 2505470769 is about 1358.1980838183.

The spelling of 2505470769 in words is "two billion, five hundred five million, four hundred seventy thousand, seven hundred sixty-nine".