2557335293 has 4 divisors (see below), whose sum is σ = 2668523808. Its totient is φ = 2446146780.

The previous prime is 2557335289. The next prime is 2557335299. The reversal of 2557335293 is 3925337552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2557335293 - 2² = 2557335289 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 (2557335299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55594223 + ... + 55594268.

It is an arithmetic number, because the mean of its divisors is an integer number (667130952).

Almost surely, 2^2557335293 is an apocalyptic number.

2557335293 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2557335293 is a deficient number, since it is larger than the sum of its proper divisors (111188515).

2557335293 is a wasteful number, since it uses less digits than its factorization.

2557335293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111188514.

The product of its digits is 850500, while the sum is 44.

The square root of 2557335293 is about 50570.1027584481. The cubic root of 2557335293 is about 1367.5059483023.

The spelling of 2557335293 in words is "two billion, five hundred fifty-seven million, three hundred thirty-five thousand, two hundred ninety-three".