2521133418 has 16 divisors (see below), whose sum is σ = 5044828320. Its totient is φ = 839950896.

The previous prime is 2521133401. The next prime is 2521133423. The reversal of 2521133418 is 8143311252.

It is a super-2 number, since 2×2521133418² = 12712227422712725448, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93813 + ... + 117656.

It is an arithmetic number, because the mean of its divisors is an integer number (315301770).

Almost surely, 2^2521133418 is an apocalyptic number.

2521133418 is an abundant number, since it is smaller than the sum of its proper divisors (2523694902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2521133418 is a wasteful number, since it uses less digits than its factorization.

2521133418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213461.

The product of its digits is 5760, while the sum is 30.

The square root of 2521133418 is about 50210.8894364559. The cubic root of 2521133418 is about 1361.0224106134.

The spelling of 2521133418 in words is "two billion, five hundred twenty-one million, one hundred thirty-three thousand, four hundred eighteen".