45250561 has 2 divisors, whose sum is σ = 45250562. Its totient is φ = 45250560.

The previous prime is 45250559. The next prime is 45250567. The reversal of 45250561 is 16505254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31708161 + 13542400 = 5631^2 + 3680^2 .

It is a cyclic number.

It is not a de Polignac number, because 45250561 - 2¹ = 45250559 is a prime.

It is a super-2 number, since 2×45250561² = 4095226541629442, which contains 22 as substring.

Together with 45250559, it forms a pair of twin primes.

It is a Chen prime.

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

It is not a weakly prime, because it can be changed into another prime (45250567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22625280 + 22625281.

It is an arithmetic number, because the mean of its divisors is an integer number (22625281).

Almost surely, 2^45250561 is an apocalyptic number.

It is an amenable number.

45250561 is a deficient number, since it is larger than the sum of its proper divisors (1).

45250561 is an equidigital number, since it uses as much as digits as its factorization.

45250561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 45250561 is about 6726.8537222092. The cubic root of 45250561 is about 356.3482709916.

The spelling of 45250561 in words is "forty-five million, two hundred fifty thousand, five hundred sixty-one".