507050221 has 2 divisors, whose sum is σ = 507050222. Its totient is φ = 507050220.

The previous prime is 507050213. The next prime is 507050227. The reversal of 507050221 is 122050705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 464618025 + 42432196 = 21555^2 + 6514^2 .

It is a cyclic number.

It is not a de Polignac number, because 507050221 - 2³ = 507050213 is a prime.

It is a super-2 number, since 2×507050221² = 514199853232297682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 507050192 and 507050201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (507050227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253525110 + 253525111.

It is an arithmetic number, because the mean of its divisors is an integer number (253525111).

Almost surely, 2^507050221 is an apocalyptic number.

It is an amenable number.

507050221 is a deficient number, since it is larger than the sum of its proper divisors (1).

507050221 is an equidigital number, since it uses as much as digits as its factorization.

507050221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 507050221 is about 22517.7756672368. The cubic root of 507050221 is about 797.4136375265.

The spelling of 507050221 in words is "five hundred seven million, fifty thousand, two hundred twenty-one".