2557516452 has 12 divisors (see below), whose sum is σ = 5967538416. Its totient is φ = 852505480.

The previous prime is 2557516447. The next prime is 2557516459. The reversal of 2557516452 is 2546157552.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2557516459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106563174 + ... + 106563197.

It is an arithmetic number, because the mean of its divisors is an integer number (497294868).

Almost surely, 2^2557516452 is an apocalyptic number.

It is an amenable number.

2557516452 is an abundant number, since it is smaller than the sum of its proper divisors (3410021964).

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

2557516452 is a wasteful number, since it uses less digits than its factorization.

2557516452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213126378 (or 213126376 counting only the distinct ones).

The product of its digits is 420000, while the sum is 42.

The square root of 2557516452 is about 50571.8938937430. The cubic root of 2557516452 is about 1367.5382384445.

The spelling of 2557516452 in words is "two billion, five hundred fifty-seven million, five hundred sixteen thousand, four hundred fifty-two".