2505500831 has 8 divisors (see below), whose sum is σ = 2555664384. Its totient is φ = 2455813080.

The previous prime is 2505500827. The next prime is 2505500861. The reversal of 2505500831 is 1380055052.

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 2505500831 - 2² = 2505500827 is a prime.

It is a super-2 number, since 2×2505500831² = 12555068828283381122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2505500794 and 2505500803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505500821) 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, 108305 + ... + 129386.

It is an arithmetic number, because the mean of its divisors is an integer number (319458048).

Almost surely, 2^2505500831 is an apocalyptic number.

2505500831 is a deficient number, since it is larger than the sum of its proper divisors (50163553).

2505500831 is a wasteful number, since it uses less digits than its factorization.

2505500831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237901.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 2505500831 is about 50054.9780841027. The cubic root of 2505500831 is about 1358.2035159295.

Adding to 2505500831 its reverse (1380055052), we get a palindrome (3885555883).

The spelling of 2505500831 in words is "two billion, five hundred five million, five hundred thousand, eight hundred thirty-one".