475521539 has 2 divisors, whose sum is σ = 475521540. Its totient is φ = 475521538.

The previous prime is 475521523. The next prime is 475521593. The reversal of 475521539 is 935125574.

Together with next prime (475521593) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 475521539 - 2⁴ = 475521523 is a prime.

It is a super-2 number, since 2×475521539² = 452241468105857042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 475521496 and 475521505.

It is not a weakly prime, because it can be changed into another prime (475521509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237760769 + 237760770.

It is an arithmetic number, because the mean of its divisors is an integer number (237760770).

Almost surely, 2^475521539 is an apocalyptic number.

475521539 is a deficient number, since it is larger than the sum of its proper divisors (1).

475521539 is an equidigital number, since it uses as much as digits as its factorization.

475521539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 41.

The square root of 475521539 is about 21806.4563604452. The cubic root of 475521539 is about 780.5308346879.

The spelling of 475521539 in words is "four hundred seventy-five million, five hundred twenty-one thousand, five hundred thirty-nine".