45544621 has 2 divisors, whose sum is σ = 45544622. Its totient is φ = 45544620.

The previous prime is 45544591. The next prime is 45544651. The reversal of 45544621 is 12644554.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (45544591) and next prime (45544651).

It can be written as a sum of positive squares in only one way, i.e., 24255625 + 21288996 = 4925^2 + 4614^2 .

It is a cyclic number.

It is not a de Polignac number, because 45544621 - 2⁵ = 45544589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45544651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22772310 + 22772311.

It is an arithmetic number, because the mean of its divisors is an integer number (22772311).

Almost surely, 2^45544621 is an apocalyptic number.

It is an amenable number.

45544621 is a deficient number, since it is larger than the sum of its proper divisors (1).

45544621 is an equidigital number, since it uses as much as digits as its factorization.

45544621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19200, while the sum is 31.

The square root of 45544621 is about 6748.6754996814. The cubic root of 45544621 is about 357.1185126492.

The spelling of 45544621 in words is "forty-five million, five hundred forty-four thousand, six hundred twenty-one".