2505551097 has 16 divisors (see below), whose sum is σ = 3890021760. Its totient is φ = 1404728832.

The previous prime is 2505551039. The next prime is 2505551143. The reversal of 2505551097 is 7901555052.

It is not a de Polignac number, because 2505551097 - 2⁷ = 2505550969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2505553097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1124472 + ... + 1126697.

It is an arithmetic number, because the mean of its divisors is an integer number (243126360).

Almost surely, 2^2505551097 is an apocalyptic number.

It is an amenable number.

2505551097 is a deficient number, since it is larger than the sum of its proper divisors (1384470663).

2505551097 is a wasteful number, since it uses less digits than its factorization.

2505551097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251232.

The product of its (nonzero) digits is 78750, while the sum is 39.

The square root of 2505551097 is about 50055.4801894857. The cubic root of 2505551097 is about 1358.2125987444.

The spelling of 2505551097 in words is "two billion, five hundred five million, five hundred fifty-one thousand, ninety-seven".