538651855 has 24 divisors (see below), whose sum is σ = 754027920. Its totient is φ = 368323200.

The previous prime is 538651853. The next prime is 538651871. The reversal of 538651855 is 558156835.

It is not a de Polignac number, because 538651855 - 2¹ = 538651853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538651853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89955 + ... + 95755.

It is an arithmetic number, because the mean of its divisors is an integer number (31417830).

Almost surely, 2^538651855 is an apocalyptic number.

538651855 is a deficient number, since it is larger than the sum of its proper divisors (215376065).

538651855 is a wasteful number, since it uses less digits than its factorization.

538651855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6199 (or 6192 counting only the distinct ones).

The product of its digits is 720000, while the sum is 46.

The square root of 538651855 is about 23208.8744880057. The cubic root of 538651855 is about 813.6470482929.

The spelling of 538651855 in words is "five hundred thirty-eight million, six hundred fifty-one thousand, eight hundred fifty-five".