45332257 has 6 divisors (see below), whose sum is σ = 45787362. Its totient is φ = 44881632.

The previous prime is 45332227. The next prime is 45332279. The reversal of 45332257 is 75223354.

It can be written as a sum of positive squares in only one way, i.e., 34468641 + 10863616 = 5871^2 + 3296^2 .

It is not a de Polignac number, because 45332257 - 2⁷ = 45332129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45332227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8473 + ... + 12745.

It is an arithmetic number, because the mean of its divisors is an integer number (7631227).

Almost surely, 2^45332257 is an apocalyptic number.

It is an amenable number.

45332257 is a deficient number, since it is larger than the sum of its proper divisors (455105).

45332257 is an equidigital number, since it uses as much as digits as its factorization.

45332257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4479 (or 4376 counting only the distinct ones).

The product of its digits is 25200, while the sum is 31.

The square root of 45332257 is about 6732.9233621065. The cubic root of 45332257 is about 356.5625941247.

The spelling of 45332257 in words is "forty-five million, three hundred thirty-two thousand, two hundred fifty-seven".