64575450 has 36 divisors (see below), whose sum is σ = 173493918. Its totient is φ = 17220000.

The previous prime is 64575443. The next prime is 64575457. The reversal of 64575450 is 5457546.

It is a happy number.

64575450 is a `hidden beast` number, since 64 + 57 + 545 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (64575443) and next prime (64575457).

It can be written as a sum of positive squares in 3 ways, for example, as 31708161 + 32867289 = 5631^2 + 5733^2 .

It is not an unprimeable number, because it can be changed into a prime (64575457) 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 17 ways as a sum of consecutive naturals, for example, 71301 + ... + 72200.

Almost surely, 2^64575450 is an apocalyptic number.

64575450 is an abundant number, since it is smaller than the sum of its proper divisors (108918468).

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

64575450 is a wasteful number, since it uses less digits than its factorization.

64575450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143519 (or 143511 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 64575450 is about 8035.8851410408. The cubic root of 64575450 is about 401.1952788800.

It can be divided in two parts, 64575 and 450, that added together give a square (65025 = 255²).

The spelling of 64575450 in words is "sixty-four million, five hundred seventy-five thousand, four hundred fifty".