58649221 has 2 divisors, whose sum is σ = 58649222. Its totient is φ = 58649220.

The previous prime is 58649191. The next prime is 58649233. The reversal of 58649221 is 12294685.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43046721 + 15602500 = 6561^2 + 3950^2 .

It is a cyclic number.

It is not a de Polignac number, because 58649221 - 2²⁵ = 25094789 is a prime.

It is a super-2 number, since 2×58649221² = 6879462247813682, which contains 22 as substring.

It is equal to p_3486718 and since 58649221 and 3486718 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58649821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29324610 + 29324611.

It is an arithmetic number, because the mean of its divisors is an integer number (29324611).

Almost surely, 2^58649221 is an apocalyptic number.

It is an amenable number.

58649221 is a deficient number, since it is larger than the sum of its proper divisors (1).

58649221 is an equidigital number, since it uses as much as digits as its factorization.

58649221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The square root of 58649221 is about 7658.2779395893. The cubic root of 58649221 is about 388.5265926175.

The spelling of 58649221 in words is "fifty-eight million, six hundred forty-nine thousand, two hundred twenty-one".