416522521 has 4 divisors (see below), whose sum is σ = 416622352. Its totient is φ = 416422692.

The previous prime is 416522501. The next prime is 416522531. The reversal of 416522521 is 125225614.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 416522521 - 2⁵ = 416522489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 416522521.

It is not an unprimeable number, because it can be changed into a prime (416522501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43371 + ... + 52096.

It is an arithmetic number, because the mean of its divisors is an integer number (104155588).

Almost surely, 2^416522521 is an apocalyptic number.

It is an amenable number.

416522521 is a deficient number, since it is larger than the sum of its proper divisors (99831).

416522521 is an equidigital number, since it uses as much as digits as its factorization.

416522521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99830.

The product of its digits is 4800, while the sum is 28.

The square root of 416522521 is about 20408.8833844481. The cubic root of 416522521 is about 746.8146511488.

The spelling of 416522521 in words is "four hundred sixteen million, five hundred twenty-two thousand, five hundred twenty-one".