45050521 has 2 divisors, whose sum is σ = 45050522. Its totient is φ = 45050520.

The previous prime is 45050519. The next prime is 45050549. The reversal of 45050521 is 12505054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31764496 + 13286025 = 5636^2 + 3645^2 .

It is a cyclic number.

It is not a de Polignac number, because 45050521 - 2¹ = 45050519 is a prime.

Together with 45050519, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 45050492 and 45050501.

It is not a weakly prime, because it can be changed into another prime (45050591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22525260 + 22525261.

It is an arithmetic number, because the mean of its divisors is an integer number (22525261).

Almost surely, 2^45050521 is an apocalyptic number.

It is an amenable number.

45050521 is a deficient number, since it is larger than the sum of its proper divisors (1).

45050521 is an equidigital number, since it uses as much as digits as its factorization.

45050521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 45050521 is about 6711.9684891990. The cubic root of 45050521 is about 355.8223901529.

Adding to 45050521 its reverse (12505054), we get a palindrome (57555575).

The spelling of 45050521 in words is "forty-five million, fifty thousand, five hundred twenty-one".