345225522553 has 2 divisors, whose sum is σ = 345225522554. Its totient is φ = 345225522552.

The previous prime is 345225522541. The next prime is 345225522569. The reversal of 345225522553 is 355225522543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284912547984 + 60312974569 = 533772^2 + 245587^2 .

It is a cyclic number.

It is not a de Polignac number, because 345225522553 - 2³³ = 336635587961 is a prime.

It is a super-2 number, since 2×345225522553² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345225522583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172612761276 + 172612761277.

It is an arithmetic number, because the mean of its divisors is an integer number (172612761277).

Almost surely, 2^345225522553 is an apocalyptic number.

It is an amenable number.

345225522553 is a deficient number, since it is larger than the sum of its proper divisors (1).

345225522553 is an equidigital number, since it uses as much as digits as its factorization.

345225522553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800000, while the sum is 43.

The spelling of 345225522553 in words is "three hundred forty-five billion, two hundred twenty-five million, five hundred twenty-two thousand, five hundred fifty-three".