475043531 has 2 divisors, whose sum is σ = 475043532. Its totient is φ = 475043530.

The previous prime is 475043483. The next prime is 475043533. The reversal of 475043531 is 135340574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 475043531 - 2²² = 470849227 is a prime.

It is a super-2 number, since 2×475043531² = 451332712689895922, which contains 22 as substring.

Together with 475043533, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (475043533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237521765 + 237521766.

It is an arithmetic number, because the mean of its divisors is an integer number (237521766).

Almost surely, 2^475043531 is an apocalyptic number.

475043531 is a deficient number, since it is larger than the sum of its proper divisors (1).

475043531 is an equidigital number, since it uses as much as digits as its factorization.

475043531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 475043531 is about 21795.4933644550. The cubic root of 475043531 is about 780.2692096163.

It can be divided in two parts, 475043 and 531, that added together give a palindrome (475574).

The spelling of 475043531 in words is "four hundred seventy-five million, forty-three thousand, five hundred thirty-one".