2613491553 has 32 divisors (see below), whose sum is σ = 3739507200. Its totient is φ = 1618617600.

The previous prime is 2613491537. The next prime is 2613491561. The reversal of 2613491553 is 3551943162.

It is not a de Polignac number, because 2613491553 - 2⁴ = 2613491537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2613421553) 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, 1919593 + ... + 1920953.

It is an arithmetic number, because the mean of its divisors is an integer number (116859600).

Almost surely, 2^2613491553 is an apocalyptic number.

It is an amenable number.

2613491553 is a deficient number, since it is larger than the sum of its proper divisors (1126015647).

2613491553 is a wasteful number, since it uses less digits than its factorization.

2613491553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013.

The product of its digits is 97200, while the sum is 39.

The square root of 2613491553 is about 51122.3195189733. The cubic root of 2613491553 is about 1377.4432026981.

The spelling of 2613491553 in words is "two billion, six hundred thirteen million, four hundred ninety-one thousand, five hundred fifty-three".