507419221 has 12 divisors (see below), whose sum is σ = 533606412. Its totient is φ = 482158656.

The previous prime is 507419197. The next prime is 507419243. The reversal of 507419221 is 122914705.

It can be written as a sum of positive squares in 2 ways, for example, as 434931025 + 72488196 = 20855^2 + 8514^2 .

It is not a de Polignac number, because 507419221 - 2⁵ = 507419189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507419021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64705 + ... + 72121.

It is an arithmetic number, because the mean of its divisors is an integer number (44467201).

Almost surely, 2^507419221 is an apocalyptic number.

It is an amenable number.

507419221 is a deficient number, since it is larger than the sum of its proper divisors (26187191).

507419221 is an equidigital number, since it uses as much as digits as its factorization.

507419221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7540 (or 7497 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 507419221 is about 22525.9677039634. The cubic root of 507419221 is about 797.6070268404.

The spelling of 507419221 in words is "five hundred seven million, four hundred nineteen thousand, two hundred twenty-one".