45055399 has 2 divisors, whose sum is σ = 45055400. Its totient is φ = 45055398.

The previous prime is 45055363. The next prime is 45055421. The reversal of 45055399 is 99355054.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45055399 - 2²⁵ = 11500967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45053399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22527699 + 22527700.

It is an arithmetic number, because the mean of its divisors is an integer number (22527700).

Almost surely, 2^45055399 is an apocalyptic number.

45055399 is a deficient number, since it is larger than the sum of its proper divisors (1).

45055399 is an equidigital number, since it uses as much as digits as its factorization.

45055399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 45055399 is about 6712.3318600915. The cubic root of 45055399 is about 355.8352323202.

It can be divided in two parts, 45055 and 399, that added together give a palindrome (45454).

The spelling of 45055399 in words is "forty-five million, fifty-five thousand, three hundred ninety-nine".