45872549 has 4 divisors (see below), whose sum is σ = 46624620. Its totient is φ = 45120480.

The previous prime is 45872531. The next prime is 45872551. The reversal of 45872549 is 94527854.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7059649 + 38812900 = 2657^2 + 6230^2 .

It is not a de Polignac number, because 45872549 - 2²⁰ = 44823973 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45872569) 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, 375944 + ... + 376065.

It is an arithmetic number, because the mean of its divisors is an integer number (11656155).

Almost surely, 2^45872549 is an apocalyptic number.

It is an amenable number.

45872549 is a deficient number, since it is larger than the sum of its proper divisors (752071).

45872549 is an equidigital number, since it uses as much as digits as its factorization.

45872549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752070.

The product of its digits is 403200, while the sum is 44.

The square root of 45872549 is about 6772.9276535336. The cubic root of 45872549 is about 357.9735657687.

The spelling of 45872549 in words is "forty-five million, eight hundred seventy-two thousand, five hundred forty-nine".