45221532 has 24 divisors (see below), whose sum is σ = 106544256. Its totient is φ = 14927088.

The previous prime is 45221531. The next prime is 45221537. The reversal of 45221532 is 23512254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45221531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17058 + ... + 19529.

It is an arithmetic number, because the mean of its divisors is an integer number (4439344).

Almost surely, 2^45221532 is an apocalyptic number.

It is an amenable number.

45221532 is an abundant number, since it is smaller than the sum of its proper divisors (61322724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45221532 is a wasteful number, since it uses less digits than its factorization.

45221532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36697 (or 36695 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 45221532 is about 6724.6956808468. The cubic root of 45221532 is about 356.2720535440.

Adding to 45221532 its reverse (23512254), we get a palindrome (68733786).

It can be divided in two parts, 45221 and 532, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 45221532 in words is "forty-five million, two hundred twenty-one thousand, five hundred thirty-two".