45288889 has 2 divisors, whose sum is σ = 45288890. Its totient is φ = 45288888.

The previous prime is 45288853. The next prime is 45288899. The reversal of 45288889 is 98888254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22963264 + 22325625 = 4792^2 + 4725^2 .

It is a cyclic number.

It is not a de Polignac number, because 45288889 - 2¹⁷ = 45157817 is a prime.

It is not a weakly prime, because it can be changed into another prime (45288809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22644444 + 22644445.

It is an arithmetic number, because the mean of its divisors is an integer number (22644445).

Almost surely, 2^45288889 is an apocalyptic number.

It is an amenable number.

45288889 is a deficient number, since it is larger than the sum of its proper divisors (1).

45288889 is an equidigital number, since it uses as much as digits as its factorization.

45288889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1474560, while the sum is 52.

The square root of 45288889 is about 6729.7019993459. The cubic root of 45288889 is about 356.4488536276.

The spelling of 45288889 in words is "forty-five million, two hundred eighty-eight thousand, eight hundred eighty-nine".