521060395 has 4 divisors (see below), whose sum is σ = 625272480. Its totient is φ = 416848312.

The previous prime is 521060357. The next prime is 521060411. The reversal of 521060395 is 593060125.

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

It is a cyclic number.

It is not a de Polignac number, because 521060395 - 2²¹ = 518963243 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52106035 + ... + 52106044.

It is an arithmetic number, because the mean of its divisors is an integer number (156318120).

Almost surely, 2^521060395 is an apocalyptic number.

521060395 is a deficient number, since it is larger than the sum of its proper divisors (104212085).

521060395 is a wasteful number, since it uses less digits than its factorization.

521060395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104212084.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 521060395 is about 22826.7473591837. The cubic root of 521060395 is about 804.6913905200.

The spelling of 521060395 in words is "five hundred twenty-one million, sixty thousand, three hundred ninety-five".