563251537 has 4 divisors (see below), whose sum is σ = 564333156. Its totient is φ = 562169920.

The previous prime is 563251519. The next prime is 563251567. The reversal of 563251537 is 735152365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 735152365 = 5 ⋅147030473.

It can be written as a sum of positive squares in 2 ways, for example, as 320016321 + 243235216 = 17889^2 + 15596^2 .

It is a cyclic number.

It is not a de Polignac number, because 563251537 - 2²³ = 554862929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 563251496 and 563251505.

It is not an unprimeable number, because it can be changed into a prime (563251517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540028 + ... + 541069.

It is an arithmetic number, because the mean of its divisors is an integer number (141083289).

Almost surely, 2^563251537 is an apocalyptic number.

It is an amenable number.

563251537 is a deficient number, since it is larger than the sum of its proper divisors (1081619).

563251537 is a wasteful number, since it uses less digits than its factorization.

563251537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081618.

The product of its digits is 94500, while the sum is 37.

The square root of 563251537 is about 23732.9209538143. The cubic root of 563251537 is about 825.8492812844.

The spelling of 563251537 in words is "five hundred sixty-three million, two hundred fifty-one thousand, five hundred thirty-seven".