60528409 has 4 divisors (see below), whose sum is σ = 61520740. Its totient is φ = 59536080.

The previous prime is 60528407. The next prime is 60528421. The reversal of 60528409 is 90482506.

It is a happy number.

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 1960000 + 58568409 = 1400^2 + 7653^2 .

It is a cyclic number.

It is not a de Polignac number, because 60528409 - 2¹ = 60528407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60528401) 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, 496074 + ... + 496195.

It is an arithmetic number, because the mean of its divisors is an integer number (15380185).

Almost surely, 2^60528409 is an apocalyptic number.

It is an amenable number.

60528409 is a deficient number, since it is larger than the sum of its proper divisors (992331).

60528409 is an equidigital number, since it uses as much as digits as its factorization.

60528409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992330.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 60528409 is about 7780.0005784061. Note that the first 3 decimals coincide. The cubic root of 60528409 is about 392.6326575001.

The spelling of 60528409 in words is "sixty million, five hundred twenty-eight thousand, four hundred nine".