231563555480249 has 16 divisors (see below), whose sum is σ = 232593916429056. Its totient is φ = 230535469256400.

The previous prime is 231563555480203. The next prime is 231563555480273. The reversal of 231563555480249 is 942084555365132.

It is a cyclic number.

It is not a de Polignac number, because 231563555480249 - 2¹⁶ = 231563555414713 is a prime.

It is a super-4 number, since 4×231563555480249⁴ (a number of 59 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231563555480191 and 231563555480200.

It is not an unprimeable number, because it can be changed into a prime (231563555480749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 862971794 + ... + 863240084.

It is an arithmetic number, because the mean of its divisors is an integer number (14537119776816).

Almost surely, 2^{231563555480249} is an apocalyptic number.

It is an amenable number.

231563555480249 is a deficient number, since it is larger than the sum of its proper divisors (1030360948807).

231563555480249 is a wasteful number, since it uses less digits than its factorization.

231563555480249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272516.

The product of its (nonzero) digits is 155520000, while the sum is 62.

The spelling of 231563555480249 in words is "two hundred thirty-one trillion, five hundred sixty-three billion, five hundred fifty-five million, four hundred eighty thousand, two hundred forty-nine".