2557433759 has 8 divisors (see below), whose sum is σ = 2662476960. Its totient is φ = 2453514336.

The previous prime is 2557433719. The next prime is 2557433761. The reversal of 2557433759 is 9573347552.

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

It is a cyclic number.

It is not a de Polignac number, because 2557433759 - 2¹⁶ = 2557368223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557433719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276299 + ... + 285404.

It is an arithmetic number, because the mean of its divisors is an integer number (332809620).

Almost surely, 2^2557433759 is an apocalyptic number.

2557433759 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2557433759 is a deficient number, since it is larger than the sum of its proper divisors (105043201).

2557433759 is a wasteful number, since it uses less digits than its factorization.

2557433759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561889.

The product of its digits is 3969000, while the sum is 50.

The square root of 2557433759 is about 50571.0763084987. The cubic root of 2557433759 is about 1367.5234992681.

The spelling of 2557433759 in words is "two billion, five hundred fifty-seven million, four hundred thirty-three thousand, seven hundred fifty-nine".