45542247 has 4 divisors (see below), whose sum is σ = 60723000. Its totient is φ = 30361496.

The previous prime is 45542243. The next prime is 45542249. The reversal of 45542247 is 74224554.

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 45542247 - 2² = 45542243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45542243) 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, 7590372 + ... + 7590377.

It is an arithmetic number, because the mean of its divisors is an integer number (15180750).

Almost surely, 2^45542247 is an apocalyptic number.

45542247 is a deficient number, since it is larger than the sum of its proper divisors (15180753).

45542247 is a wasteful number, since it uses less digits than its factorization.

45542247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15180752.

The product of its digits is 44800, while the sum is 33.

The square root of 45542247 is about 6748.4996110247. The cubic root of 45542247 is about 357.1123076422.

The spelling of 45542247 in words is "forty-five million, five hundred forty-two thousand, two hundred forty-seven".