244505544553 has 4 divisors (see below), whose sum is σ = 246669310548. Its totient is φ = 242341778560.

The previous prime is 244505544463. The next prime is 244505544583. The reversal of 244505544553 is 355445505442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355445505442 = 2 ⋅177722752721.

It can be written as a sum of positive squares in 2 ways, for example, as 106632943209 + 137872601344 = 326547^2 + 371312^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244505544553 is a prime.

It is a super-2 number, since 2×244505544553² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244505544583) 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, 1081882828 + ... + 1081883053.

It is an arithmetic number, because the mean of its divisors is an integer number (61667327637).

Almost surely, 2^244505544553 is an apocalyptic number.

It is an amenable number.

244505544553 is a deficient number, since it is larger than the sum of its proper divisors (2163765995).

244505544553 is a wasteful number, since it uses less digits than its factorization.

244505544553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163765994.

The product of its (nonzero) digits is 4800000, while the sum is 46.

The spelling of 244505544553 in words is "two hundred forty-four billion, five hundred five million, five hundred forty-four thousand, five hundred fifty-three".