45409253 has 2 divisors, whose sum is σ = 45409254. Its totient is φ = 45409252.

The previous prime is 45409241. The next prime is 45409339. The reversal of 45409253 is 35290454.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45131524 + 277729 = 6718^2 + 527^2 .

It is a cyclic number.

It is not a de Polignac number, because 45409253 - 2⁸ = 45408997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45409223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22704626 + 22704627.

It is an arithmetic number, because the mean of its divisors is an integer number (22704627).

Almost surely, 2^45409253 is an apocalyptic number.

It is an amenable number.

45409253 is a deficient number, since it is larger than the sum of its proper divisors (1).

45409253 is an equidigital number, since it uses as much as digits as its factorization.

45409253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 45409253 is about 6738.6388091365. The cubic root of 45409253 is about 356.7643515976.

The spelling of 45409253 in words is "forty-five million, four hundred nine thousand, two hundred fifty-three".