45456553 has 2 divisors, whose sum is σ = 45456554. Its totient is φ = 45456552.

The previous prime is 45456539. The next prime is 45456559. The reversal of 45456553 is 35565454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44129449 + 1327104 = 6643^2 + 1152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45456553 is a prime.

It is not a weakly prime, because it can be changed into another prime (45456559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22728276 + 22728277.

It is an arithmetic number, because the mean of its divisors is an integer number (22728277).

Almost surely, 2^45456553 is an apocalyptic number.

It is an amenable number.

45456553 is a deficient number, since it is larger than the sum of its proper divisors (1).

45456553 is an equidigital number, since it uses as much as digits as its factorization.

45456553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180000, while the sum is 37.

The square root of 45456553 is about 6742.1475065442. The cubic root of 45456553 is about 356.8881817049. Note that the first 3 decimals are identical.

The spelling of 45456553 in words is "forty-five million, four hundred fifty-six thousand, five hundred fifty-three".