2557246929 has 16 divisors (see below), whose sum is σ = 3462930240. Its totient is φ = 1678397760.

The previous prime is 2557246921. The next prime is 2557246943. The reversal of 2557246929 is 9296427552.

It is not a de Polignac number, because 2557246929 - 2³ = 2557246921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2557246921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26434 + ... + 76244.

It is an arithmetic number, because the mean of its divisors is an integer number (216433140).

Almost surely, 2^2557246929 is an apocalyptic number.

It is an amenable number.

2557246929 is a deficient number, since it is larger than the sum of its proper divisors (905683311).

2557246929 is a wasteful number, since it uses less digits than its factorization.

2557246929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50080.

The product of its digits is 2721600, while the sum is 51.

The square root of 2557246929 is about 50569.2290726287. The cubic root of 2557246929 is about 1367.4901975731.

The spelling of 2557246929 in words is "two billion, five hundred fifty-seven million, two hundred forty-six thousand, nine hundred twenty-nine".