45221051 has 2 divisors, whose sum is σ = 45221052. Its totient is φ = 45221050.

The previous prime is 45221041. The next prime is 45221093. The reversal of 45221051 is 15012254.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45221051 - 2¹⁰ = 45220027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45221021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22610525 + 22610526.

It is an arithmetic number, because the mean of its divisors is an integer number (22610526).

Almost surely, 2^45221051 is an apocalyptic number.

45221051 is a deficient number, since it is larger than the sum of its proper divisors (1).

45221051 is an equidigital number, since it uses as much as digits as its factorization.

45221051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 45221051 is about 6724.6599170516. The cubic root of 45221051 is about 356.2707903738.

The spelling of 45221051 in words is "forty-five million, two hundred twenty-one thousand, fifty-one".