245533563 has 48 divisors (see below), whose sum is σ = 395865600. Its totient is φ = 146622960.

The previous prime is 245533513. The next prime is 245533573. The reversal of 245533563 is 365335542.

245533563 is a `hidden beast` number, since 2 + 45 + 53 + 3 + 563 = 666.

It is not a de Polignac number, because 245533563 - 2¹⁸ = 245271419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245533513) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1233738 + ... + 1233936.

It is an arithmetic number, because the mean of its divisors is an integer number (8247200).

Almost surely, 2^245533563 is an apocalyptic number.

245533563 is a deficient number, since it is larger than the sum of its proper divisors (150332037).

245533563 is a wasteful number, since it uses less digits than its factorization.

245533563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 316 counting only the distinct ones).

The product of its digits is 162000, while the sum is 36.

The square root of 245533563 is about 15669.5106177570. The cubic root of 245533563 is about 626.1863869792.

The spelling of 245533563 in words is "two hundred forty-five million, five hundred thirty-three thousand, five hundred sixty-three".