500061421 has 2 divisors, whose sum is σ = 500061422. Its totient is φ = 500061420.

The previous prime is 500061337. The next prime is 500061427. The reversal of 500061421 is 124160005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 474760521 + 25300900 = 21789^2 + 5030^2 .

It is a cyclic number.

It is not a de Polignac number, because 500061421 - 2⁹ = 500060909 is a prime.

It is a super-2 number, since 2×500061421² = 500122849545078482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500061427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250030710 + 250030711.

It is an arithmetic number, because the mean of its divisors is an integer number (250030711).

Almost surely, 2^500061421 is an apocalyptic number.

It is an amenable number.

500061421 is a deficient number, since it is larger than the sum of its proper divisors (1).

500061421 is an equidigital number, since it uses as much as digits as its factorization.

500061421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 500061421 is about 22362.0531481347. The cubic root of 500061421 is about 793.7330245734.

The spelling of 500061421 in words is "five hundred million, sixty-one thousand, four hundred twenty-one".