45758221 has 4 divisors (see below), whose sum is σ = 45813600. Its totient is φ = 45702844.

The previous prime is 45758189. The next prime is 45758231. The reversal of 45758221 is 12285754.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45758221 - 2⁵ = 45758189 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 (45758231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26431 + ... + 28108.

It is an arithmetic number, because the mean of its divisors is an integer number (11453400).

Almost surely, 2^45758221 is an apocalyptic number.

It is an amenable number.

45758221 is a deficient number, since it is larger than the sum of its proper divisors (55379).

45758221 is an equidigital number, since it uses as much as digits as its factorization.

45758221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55378.

The product of its digits is 22400, while the sum is 34.

The square root of 45758221 is about 6764.4823157430. The cubic root of 45758221 is about 357.6759262572.

The spelling of 45758221 in words is "forty-five million, seven hundred fifty-eight thousand, two hundred twenty-one".