538251563 has 2 divisors, whose sum is σ = 538251564. Its totient is φ = 538251562.

The previous prime is 538251547. The next prime is 538251587. The reversal of 538251563 is 365152835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 538251563 - 2⁴ = 538251547 is a prime.

It is a super-3 number, since 3×538251563³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (538251163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269125781 + 269125782.

It is an arithmetic number, because the mean of its divisors is an integer number (269125782).

Almost surely, 2^538251563 is an apocalyptic number.

538251563 is a deficient number, since it is larger than the sum of its proper divisors (1).

538251563 is an equidigital number, since it uses as much as digits as its factorization.

538251563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 38.

The square root of 538251563 is about 23200.2492012478. The cubic root of 538251563 is about 813.4454479992.

The spelling of 538251563 in words is "five hundred thirty-eight million, two hundred fifty-one thousand, five hundred sixty-three".