82225545 has 16 divisors (see below), whose sum is σ = 131767872. Its totient is φ = 43784640.

The previous prime is 82225543. The next prime is 82225553. The reversal of 82225545 is 54552228.

It is a happy number.

It is not a de Polignac number, because 82225545 - 2¹ = 82225543 is a prime.

It is a super-2 number, since 2×82225545² = 13522080501094050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82225543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6399 + ... + 14331.

It is an arithmetic number, because the mean of its divisors is an integer number (8235492).

Almost surely, 2^82225545 is an apocalyptic number.

It is an amenable number.

82225545 is a deficient number, since it is larger than the sum of its proper divisors (49542327).

82225545 is a wasteful number, since it uses less digits than its factorization.

82225545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8632.

The product of its digits is 32000, while the sum is 33.

The square root of 82225545 is about 9067.8302255832. The cubic root of 82225545 is about 434.8461075395.

The spelling of 82225545 in words is "eighty-two million, two hundred twenty-five thousand, five hundred forty-five".