2057553717 has 8 divisors (see below), whose sum is σ = 2810317440. Its totient is φ = 1338246240.

The previous prime is 2057553713. The next prime is 2057553761. The reversal of 2057553717 is 7173557502.

It is a happy number.

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

It is not a de Polignac number, because 2057553717 - 2² = 2057553713 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057553713) 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, 8363917 + ... + 8364162.

It is an arithmetic number, because the mean of its divisors is an integer number (351289680).

Almost surely, 2^2057553717 is an apocalyptic number.

It is an amenable number.

2057553717 is a deficient number, since it is larger than the sum of its proper divisors (752763723).

2057553717 is a wasteful number, since it uses less digits than its factorization.

2057553717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16728123.

The product of its (nonzero) digits is 257250, while the sum is 42.

The square root of 2057553717 is about 45360.2658391681. The cubic root of 2057553717 is about 1271.8924638878.

The spelling of 2057553717 in words is "two billion, fifty-seven million, five hundred fifty-three thousand, seven hundred seventeen".