755120538 has 24 divisors (see below), whose sum is σ = 1636633908. Its totient is φ = 251623872.

The previous prime is 755120533. The next prime is 755120539. The reversal of 755120538 is 835021557.

755120538 is a `hidden beast` number, since 75 + 51 + 2 + 0 + 538 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 484748289 + 270372249 = 22017^2 + 16443^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (755120533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76206 + ... + 85542.

Almost surely, 2^755120538 is an apocalyptic number.

755120538 is an abundant number, since it is smaller than the sum of its proper divisors (881513370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

755120538 is a wasteful number, since it uses less digits than its factorization.

755120538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13838 (or 13835 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 755120538 is about 27479.4566540170. The cubic root of 755120538 is about 910.6233052076.

The spelling of 755120538 in words is "seven hundred fifty-five million, one hundred twenty thousand, five hundred thirty-eight".