45532621 has 2 divisors, whose sum is σ = 45532622. Its totient is φ = 45532620.

The previous prime is 45532609. The next prime is 45532631. The reversal of 45532621 is 12623554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33767721 + 11764900 = 5811^2 + 3430^2 .

It is a cyclic number.

It is not a de Polignac number, because 45532621 - 2²³ = 37144013 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45532621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45532631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22766310 + 22766311.

It is an arithmetic number, because the mean of its divisors is an integer number (22766311).

Almost surely, 2^45532621 is an apocalyptic number.

It is an amenable number.

45532621 is a deficient number, since it is larger than the sum of its proper divisors (1).

45532621 is an equidigital number, since it uses as much as digits as its factorization.

45532621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 28.

The square root of 45532621 is about 6747.7863777686. The cubic root of 45532621 is about 357.0871456185.

The spelling of 45532621 in words is "forty-five million, five hundred thirty-two thousand, six hundred twenty-one".