45024257 has 4 divisors (see below), whose sum is σ = 45787440. Its totient is φ = 44261076.

The previous prime is 45024253. The next prime is 45024277. The reversal of 45024257 is 75242054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75242054 = 2 ⋅37621027.

It is a cyclic number.

It is not a de Polignac number, because 45024257 - 2² = 45024253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45024251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381503 + ... + 381620.

It is an arithmetic number, because the mean of its divisors is an integer number (11446860).

Almost surely, 2^45024257 is an apocalyptic number.

It is an amenable number.

45024257 is a deficient number, since it is larger than the sum of its proper divisors (763183).

45024257 is an equidigital number, since it uses as much as digits as its factorization.

45024257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763182.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 45024257 is about 6710.0116989466. The cubic root of 45024257 is about 355.7532297547.

The spelling of 45024257 in words is "forty-five million, twenty-four thousand, two hundred fifty-seven".