2513458891 has 4 divisors (see below), whose sum is σ = 2661309432. Its totient is φ = 2365608352.

The previous prime is 2513458867. The next prime is 2513458897. The reversal of 2513458891 is 1988543152.

2513458891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2513458891 - 2⁷ = 2513458763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2513458897) 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, 73925245 + ... + 73925278.

It is an arithmetic number, because the mean of its divisors is an integer number (665327358).

Almost surely, 2^2513458891 is an apocalyptic number.

2513458891 is a deficient number, since it is larger than the sum of its proper divisors (147850541).

2513458891 is a wasteful number, since it uses less digits than its factorization.

2513458891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147850540.

The product of its digits is 345600, while the sum is 46.

The square root of 2513458891 is about 50134.4082542120. The cubic root of 2513458891 is about 1359.6399874282.

The spelling of 2513458891 in words is "two billion, five hundred thirteen million, four hundred fifty-eight thousand, eight hundred ninety-one".