82225544 has 16 divisors (see below), whose sum is σ = 158340300. Its totient is φ = 40001472.

The previous prime is 82225543. The next prime is 82225553. The reversal of 82225544 is 44552228.

It can be written as a sum of positive squares in 2 ways, for example, as 71740900 + 10484644 = 8470^2 + 3238^2 .

It is a super-2 number, since 2×82225544² = 13522080172191872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82225544.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138599 + ... + 139190.

Almost surely, 2^82225544 is an apocalyptic number.

It is an amenable number.

82225544 is a deficient number, since it is larger than the sum of its proper divisors (76114756).

82225544 is a wasteful number, since it uses less digits than its factorization.

82225544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277832 (or 277828 counting only the distinct ones).

The product of its digits is 25600, while the sum is 32.

The square root of 82225544 is about 9067.8301704432. The cubic root of 82225544 is about 434.8461057767.

The spelling of 82225544 in words is "eighty-two million, two hundred twenty-five thousand, five hundred forty-four".