475547431 has 2 divisors, whose sum is σ = 475547432. Its totient is φ = 475547430.

The previous prime is 475547419. The next prime is 475547437. The reversal of 475547431 is 134745574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 475547431 - 2²³ = 467158823 is a prime.

It is a super-2 number, since 2×475547431² = 452290718261399522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475547437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237773715 + 237773716.

It is an arithmetic number, because the mean of its divisors is an integer number (237773716).

Almost surely, 2^475547431 is an apocalyptic number.

475547431 is a deficient number, since it is larger than the sum of its proper divisors (1).

475547431 is an equidigital number, since it uses as much as digits as its factorization.

475547431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235200, while the sum is 40.

The square root of 475547431 is about 21807.0500297496. The cubic root of 475547431 is about 780.5450009846.

The spelling of 475547431 in words is "four hundred seventy-five million, five hundred forty-seven thousand, four hundred thirty-one".