45551629 has 2 divisors, whose sum is σ = 45551630. Its totient is φ = 45551628.

The previous prime is 45551621. The next prime is 45551669. The reversal of 45551629 is 92615554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44555625 + 996004 = 6675^2 + 998^2 .

It is a cyclic number.

It is not a de Polignac number, because 45551629 - 2³ = 45551621 is a prime.

It is equal to p_2749618 and since 45551629 and 2749618 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 (45551621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22775814 + 22775815.

It is an arithmetic number, because the mean of its divisors is an integer number (22775815).

Almost surely, 2^45551629 is an apocalyptic number.

It is an amenable number.

45551629 is a deficient number, since it is larger than the sum of its proper divisors (1).

45551629 is an equidigital number, since it uses as much as digits as its factorization.

45551629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54000, while the sum is 37.

The square root of 45551629 is about 6749.1946927022. The cubic root of 45551629 is about 357.1368284468.

The spelling of 45551629 in words is "forty-five million, five hundred fifty-one thousand, six hundred twenty-nine".