1225501200563 has 4 divisors (see below), whose sum is σ = 1251575694240. Its totient is φ = 1199426706888.

The previous prime is 1225501200467. The next prime is 1225501200571. The reversal of 1225501200563 is 3650021055221.

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

It is a cyclic number.

It is not a de Polignac number, because 1225501200563 - 2²⁶ = 1225434091699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225501200593) 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, 13037246768 + ... + 13037246861.

It is an arithmetic number, because the mean of its divisors is an integer number (312893923560).

Almost surely, 2^{1225501200563} is an apocalyptic number.

1225501200563 is a deficient number, since it is larger than the sum of its proper divisors (26074493677).

1225501200563 is an equidigital number, since it uses as much as digits as its factorization.

1225501200563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26074493676.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 1225501200563 its reverse (3650021055221), we get a palindrome (4875522255784).

The spelling of 1225501200563 in words is "one trillion, two hundred twenty-five billion, five hundred one million, two hundred thousand, five hundred sixty-three".