528461613 has 6 divisors (see below), whose sum is σ = 763333454. Its totient is φ = 352307736.

The previous prime is 528461603. The next prime is 528461621. The reversal of 528461613 is 316164825.

It is a happy number.

528461613 is a `hidden beast` number, since 5 + 28 + 4 + 616 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 465782724 + 62678889 = 21582^2 + 7917^2 .

It is not a de Polignac number, because 528461613 - 2⁴ = 528461597 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 (528461603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29358970 + ... + 29358987.

Almost surely, 2^528461613 is an apocalyptic number.

It is an amenable number.

528461613 is a deficient number, since it is larger than the sum of its proper divisors (234871841).

528461613 is a wasteful number, since it uses less digits than its factorization.

528461613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58717963 (or 58717960 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 528461613 is about 22988.2929553284. The cubic root of 528461613 is about 808.4834770472.

The spelling of 528461613 in words is "five hundred twenty-eight million, four hundred sixty-one thousand, six hundred thirteen".