245341553 has 2 divisors, whose sum is σ = 245341554. Its totient is φ = 245341552.

The previous prime is 245341549. The next prime is 245341559. The reversal of 245341553 is 355143542.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193961329 + 51380224 = 13927^2 + 7168^2 .

It is a cyclic number.

It is not a de Polignac number, because 245341553 - 2² = 245341549 is a prime.

It is not a weakly prime, because it can be changed into another prime (245341559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122670776 + 122670777.

It is an arithmetic number, because the mean of its divisors is an integer number (122670777).

Almost surely, 2^245341553 is an apocalyptic number.

It is an amenable number.

245341553 is a deficient number, since it is larger than the sum of its proper divisors (1).

245341553 is an equidigital number, since it uses as much as digits as its factorization.

245341553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 32.

The square root of 245341553 is about 15663.3825529481. The cubic root of 245341553 is about 626.0231161528.

The spelling of 245341553 in words is "two hundred forty-five million, three hundred forty-one thousand, five hundred fifty-three".