64552228 has 12 divisors (see below), whose sum is σ = 121656220. Its totient is φ = 29793312.

The previous prime is 64552219. The next prime is 64552249. The reversal of 64552228 is 82225546.

It can be written as a sum of positive squares in 2 ways, for example, as 10705984 + 53846244 = 3272^2 + 7338^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64552193 and 64552202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620643 + ... + 620746.

Almost surely, 2^64552228 is an apocalyptic number.

It is an amenable number.

64552228 is a deficient number, since it is larger than the sum of its proper divisors (57103992).

64552228 is a wasteful number, since it uses less digits than its factorization.

64552228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241406 (or 1241404 counting only the distinct ones).

The product of its digits is 38400, while the sum is 34.

The square root of 64552228 is about 8034.4401173946. The cubic root of 64552228 is about 401.1471817896.

The spelling of 64552228 in words is "sixty-four million, five hundred fifty-two thousand, two hundred twenty-eight".