345555053 has 4 divisors (see below), whose sum is σ = 345797628. Its totient is φ = 345312480.

The previous prime is 345554999. The next prime is 345555061. The reversal of 345555053 is 350555543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350555543 = 13 ⋅26965811.

It can be written as a sum of positive squares in 2 ways, for example, as 189255049 + 156300004 = 13757^2 + 12502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345555053 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 (345555653) 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, 119138 + ... + 122003.

It is an arithmetic number, because the mean of its divisors is an integer number (86449407).

Almost surely, 2^345555053 is an apocalyptic number.

It is an amenable number.

345555053 is a deficient number, since it is larger than the sum of its proper divisors (242575).

345555053 is a wasteful number, since it uses less digits than its factorization.

345555053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242574.

The product of its (nonzero) digits is 112500, while the sum is 35.

The square root of 345555053 is about 18589.1111406651. Note that the first 4 decimals coincide. The cubic root of 345555053 is about 701.7338332074.

The spelling of 345555053 in words is "three hundred forty-five million, five hundred fifty-five thousand, fifty-three".