245544533 has 4 divisors (see below), whose sum is σ = 264432588. Its totient is φ = 226656480.

The previous prime is 245544529. The next prime is 245544557. The reversal of 245544533 is 335445542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335445542 = 2 ⋅167722771.

It can be written as a sum of positive squares in 2 ways, for example, as 157803844 + 87740689 = 12562^2 + 9367^2 .

It is a cyclic number.

It is not a de Polignac number, because 245544533 - 2² = 245544529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245544493 and 245544502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245544133) 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, 9444008 + ... + 9444033.

It is an arithmetic number, because the mean of its divisors is an integer number (66108147).

Almost surely, 2^245544533 is an apocalyptic number.

It is an amenable number.

245544533 is a deficient number, since it is larger than the sum of its proper divisors (18888055).

245544533 is a wasteful number, since it uses less digits than its factorization.

245544533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18888054.

The product of its digits is 144000, while the sum is 35.

The square root of 245544533 is about 15669.8606566874. The cubic root of 245544533 is about 626.1957124692.

The spelling of 245544533 in words is "two hundred forty-five million, five hundred forty-four thousand, five hundred thirty-three".