521427083 has 4 divisors (see below), whose sum is σ = 521473848. Its totient is φ = 521380320.

The previous prime is 521427041. The next prime is 521427121. The reversal of 521427083 is 380724125.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 521427083 - 2⁶ = 521427019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521427883) 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, 4148 + ... + 32558.

It is an arithmetic number, because the mean of its divisors is an integer number (130368462).

Almost surely, 2^521427083 is an apocalyptic number.

521427083 is a deficient number, since it is larger than the sum of its proper divisors (46765).

521427083 is a wasteful number, since it uses less digits than its factorization.

521427083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46764.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 521427083 is about 22834.7779275385. Note that the first 3 decimals coincide. The cubic root of 521427083 is about 804.8801091979.

The spelling of 521427083 in words is "five hundred twenty-one million, four hundred twenty-seven thousand, eighty-three".