45257305 has 8 divisors (see below), whose sum is σ = 54355392. Its totient is φ = 36174768.

The previous prime is 45257263. The next prime is 45257351. The reversal of 45257305 is 50375254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45257305 - 2⁹ = 45256793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3964 + ... + 10306.

It is an arithmetic number, because the mean of its divisors is an integer number (6794424).

Almost surely, 2^45257305 is an apocalyptic number.

It is an amenable number.

45257305 is a deficient number, since it is larger than the sum of its proper divisors (9098087).

45257305 is a wasteful number, since it uses less digits than its factorization.

45257305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7775.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 45257305 is about 6727.3549779984. The cubic root of 45257305 is about 356.3659731173.

The spelling of 45257305 in words is "forty-five million, two hundred fifty-seven thousand, three hundred five".