45551573 has 2 divisors, whose sum is σ = 45551574. Its totient is φ = 45551572.

The previous prime is 45551537. The next prime is 45551579. The reversal of 45551573 is 37515554.

Together with previous prime (45551537) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45064369 + 487204 = 6713^2 + 698^2 .

It is a cyclic number.

It is not a de Polignac number, because 45551573 - 2¹² = 45547477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45551579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22775786 + 22775787.

It is an arithmetic number, because the mean of its divisors is an integer number (22775787).

Almost surely, 2^45551573 is an apocalyptic number.

It is an amenable number.

45551573 is a deficient number, since it is larger than the sum of its proper divisors (1).

45551573 is an equidigital number, since it uses as much as digits as its factorization.

45551573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52500, while the sum is 35.

The square root of 45551573 is about 6749.1905440579. The cubic root of 45551573 is about 357.1366820951.

The spelling of 45551573 in words is "forty-five million, five hundred fifty-one thousand, five hundred seventy-three".