2557208426 has 8 divisors (see below), whose sum is σ = 3836087424. Its totient is φ = 1278512620.

The previous prime is 2557208413. The next prime is 2557208443. The reversal of 2557208426 is 6248027552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2840 + ... + 71571.

It is an arithmetic number, because the mean of its divisors is an integer number (479510928).

Almost surely, 2^2557208426 is an apocalyptic number.

2557208426 is a deficient number, since it is larger than the sum of its proper divisors (1278878998).

2557208426 is a wasteful number, since it uses less digits than its factorization.

2557208426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91596.

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 2557208426 is about 50568.8483752596. The cubic root of 2557208426 is about 1367.4833343668.

The spelling of 2557208426 in words is "two billion, five hundred fifty-seven million, two hundred eight thousand, four hundred twenty-six".