345250870553 has 2 divisors, whose sum is σ = 345250870554. Its totient is φ = 345250870552.

The previous prime is 345250870543. The next prime is 345250870579. The reversal of 345250870553 is 355078052543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336136731529 + 9114139024 = 579773^2 + 95468^2 .

It is a cyclic number.

It is not a de Polignac number, because 345250870553 - 2⁴ = 345250870537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345250870498 and 345250870507.

It is not a weakly prime, because it can be changed into another prime (345250870543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172625435276 + 172625435277.

It is an arithmetic number, because the mean of its divisors is an integer number (172625435277).

Almost surely, 2^345250870553 is an apocalyptic number.

It is an amenable number.

345250870553 is a deficient number, since it is larger than the sum of its proper divisors (1).

345250870553 is an equidigital number, since it uses as much as digits as its factorization.

345250870553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520000, while the sum is 47.

The spelling of 345250870553 in words is "three hundred forty-five billion, two hundred fifty million, eight hundred seventy thousand, five hundred fifty-three".