530477905 has 4 divisors (see below), whose sum is σ = 636573492. Its totient is φ = 424382320.

The previous prime is 530477903. The next prime is 530477939. The reversal of 530477905 is 509774035.

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

It can be written as a sum of positive squares in 2 ways, for example, as 252555664 + 277922241 = 15892^2 + 16671^2 .

It is not a de Polignac number, because 530477905 - 2¹ = 530477903 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530477903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53047786 + ... + 53047795.

It is an arithmetic number, because the mean of its divisors is an integer number (159143373).

Almost surely, 2^530477905 is an apocalyptic number.

It is an amenable number.

530477905 is a deficient number, since it is larger than the sum of its proper divisors (106095587).

530477905 is a wasteful number, since it uses less digits than its factorization.

530477905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106095586.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 530477905 is about 23032.1059610275. The cubic root of 530477905 is about 809.5104011733.

The spelling of 530477905 in words is "five hundred thirty million, four hundred seventy-seven thousand, nine hundred five".