245401563 has 8 divisors (see below), whose sum is σ = 356947776. Its totient is φ = 148728200.

The previous prime is 245401493. The next prime is 245401573. The reversal of 245401563 is 365104542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245401563 - 2²⁰ = 244352987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245401563.

It is not an unprimeable number, because it can be changed into a prime (245401573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3718173 + ... + 3718238.

It is an arithmetic number, because the mean of its divisors is an integer number (44618472).

Almost surely, 2^245401563 is an apocalyptic number.

245401563 is a deficient number, since it is larger than the sum of its proper divisors (111546213).

245401563 is a wasteful number, since it uses less digits than its factorization.

245401563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7436425.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 245401563 is about 15665.2980501489. The cubic root of 245401563 is about 626.0741532806.

The spelling of 245401563 in words is "two hundred forty-five million, four hundred one thousand, five hundred sixty-three".