75531263 has 4 divisors (see below), whose sum is σ = 77287848. Its totient is φ = 73774680.

The previous prime is 75531259. The next prime is 75531271. The reversal of 75531263 is 36213557.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75531263 - 2² = 75531259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75537263) 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 3 ways as a sum of consecutive naturals, for example, 878228 + ... + 878313.

It is an arithmetic number, because the mean of its divisors is an integer number (19321962).

Almost surely, 2^75531263 is an apocalyptic number.

75531263 is a deficient number, since it is larger than the sum of its proper divisors (1756585).

75531263 is a wasteful number, since it uses less digits than its factorization.

75531263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756584.

The product of its digits is 18900, while the sum is 32.

The square root of 75531263 is about 8690.8723957955. The cubic root of 75531263 is about 422.7097342258.

The spelling of 75531263 in words is "seventy-five million, five hundred thirty-one thousand, two hundred sixty-three".