2505782527 has 4 divisors (see below), whose sum is σ = 2566899216. Its totient is φ = 2444665840.

The previous prime is 2505782441. The next prime is 2505782549. The reversal of 2505782527 is 7252875052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2505782527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506782527) 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, 30558283 + ... + 30558364.

It is an arithmetic number, because the mean of its divisors is an integer number (641724804).

Almost surely, 2^2505782527 is an apocalyptic number.

2505782527 is a deficient number, since it is larger than the sum of its proper divisors (61116689).

2505782527 is an equidigital number, since it uses as much as digits as its factorization.

2505782527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61116688.

The product of its (nonzero) digits is 392000, while the sum is 43.

The square root of 2505782527 is about 50057.7918709965. The cubic root of 2505782527 is about 1358.2544154216.

It can be divided in two parts, 25057 and 82527, that added together give a square (107584 = 328²).

The spelling of 2505782527 in words is "two billion, five hundred five million, seven hundred eighty-two thousand, five hundred twenty-seven".