45456251 has 4 divisors (see below), whose sum is σ = 45475272. Its totient is φ = 45437232.

The previous prime is 45456233. The next prime is 45456263. The reversal of 45456251 is 15265454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45456251 - 2²² = 41261947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45456451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5306 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (11368818).

Almost surely, 2^45456251 is an apocalyptic number.

45456251 is a deficient number, since it is larger than the sum of its proper divisors (19021).

45456251 is a wasteful number, since it uses less digits than its factorization.

45456251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19020.

The product of its digits is 24000, while the sum is 32.

The square root of 45456251 is about 6742.1251100821. The cubic root of 45456251 is about 356.8873913497.

The spelling of 45456251 in words is "forty-five million, four hundred fifty-six thousand, two hundred fifty-one".