345056557 has 8 divisors (see below), whose sum is σ = 362690496. Its totient is φ = 327641952.

The previous prime is 345056539. The next prime is 345056609. The reversal of 345056557 is 755650543.

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 345056557 - 2¹¹ = 345054509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345056357) 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, 51603 + ... + 57904.

It is an arithmetic number, because the mean of its divisors is an integer number (45336312).

Almost surely, 2^345056557 is an apocalyptic number.

It is an amenable number.

345056557 is a deficient number, since it is larger than the sum of its proper divisors (17633939).

345056557 is a wasteful number, since it uses less digits than its factorization.

345056557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109667.

The product of its (nonzero) digits is 315000, while the sum is 40.

The square root of 345056557 is about 18575.6980218779. The cubic root of 345056557 is about 701.3962315691.

The spelling of 345056557 in words is "three hundred forty-five million, fifty-six thousand, five hundred fifty-seven".