2513487865 has 32 divisors (see below), whose sum is σ = 3652669440. Its totient is φ = 1621944000.

The previous prime is 2513487853. The next prime is 2513487869. The reversal of 2513487865 is 5687843152.

It is a happy number.

It is not a de Polignac number, because 2513487865 - 2¹⁵ = 2513455097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2513487869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87900 + ... + 112930.

It is an arithmetic number, because the mean of its divisors is an integer number (114145920).

Almost surely, 2^2513487865 is an apocalyptic number.

It is an amenable number.

2513487865 is a deficient number, since it is larger than the sum of its proper divisors (1139181575).

2513487865 is a wasteful number, since it uses less digits than its factorization.

2513487865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25213.

The product of its digits is 1612800, while the sum is 49.

The square root of 2513487865 is about 50134.6972165984. The cubic root of 2513487865 is about 1359.6452118433.

The spelling of 2513487865 in words is "two billion, five hundred thirteen million, four hundred eighty-seven thousand, eight hundred sixty-five".