345206553 has 8 divisors (see below), whose sum is σ = 460392768. Its totient is φ = 230079024.

The previous prime is 345206549. The next prime is 345206567. The reversal of 345206553 is 355602543.

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

It is not a de Polignac number, because 345206553 - 2² = 345206549 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345206753) 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, 1651 + ... + 26327.

It is an arithmetic number, because the mean of its divisors is an integer number (57549096).

Almost surely, 2^345206553 is an apocalyptic number.

It is an amenable number.

345206553 is a deficient number, since it is larger than the sum of its proper divisors (115186215).

345206553 is a wasteful number, since it uses less digits than its factorization.

345206553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29343.

The product of its (nonzero) digits is 54000, while the sum is 33.

The square root of 345206553 is about 18579.7350088746. The cubic root of 345206553 is about 701.4978491023.

The spelling of 345206553 in words is "three hundred forty-five million, two hundred six thousand, five hundred fifty-three".