521241105 has 64 divisors (see below), whose sum is σ = 1057536000. Its totient is φ = 212920320.

The previous prime is 521241073. The next prime is 521241113. The reversal of 521241105 is 501142125.

It is not a de Polignac number, because 521241105 - 2⁵ = 521241073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64321 + ... + 71969.

It is an arithmetic number, because the mean of its divisors is an integer number (16524000).

Almost surely, 2^521241105 is an apocalyptic number.

521241105 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

521241105 is an abundant number, since it is smaller than the sum of its proper divisors (536294895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521241105 is a wasteful number, since it uses less digits than its factorization.

521241105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7734.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 521241105 is about 22830.7053110499. The cubic root of 521241105 is about 804.7844053127.

The spelling of 521241105 in words is "five hundred twenty-one million, two hundred forty-one thousand, one hundred five".