245164553 has 4 divisors (see below), whose sum is σ = 251790660. Its totient is φ = 238538448.

The previous prime is 245164541. The next prime is 245164559. The reversal of 245164553 is 355461542.

245164553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 129322384 + 115842169 = 11372^2 + 10763^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245164553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (245164559) 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, 3312998 + ... + 3313071.

It is an arithmetic number, because the mean of its divisors is an integer number (62947665).

Almost surely, 2^245164553 is an apocalyptic number.

It is an amenable number.

245164553 is a deficient number, since it is larger than the sum of its proper divisors (6626107).

245164553 is an equidigital number, since it uses as much as digits as its factorization.

245164553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6626106.

The product of its digits is 72000, while the sum is 35.

The square root of 245164553 is about 15657.7314129474. The cubic root of 245164553 is about 625.8725332237.

The spelling of 245164553 in words is "two hundred forty-five million, one hundred sixty-four thousand, five hundred fifty-three".