64953250 has 16 divisors (see below), whose sum is σ = 121592952. Its totient is φ = 25981200.

The previous prime is 64953181. The next prime is 64953253. The reversal of 64953250 is 5235946.

It can be written as a sum of positive squares in 4 ways, for example, as 21353641 + 43599609 = 4621^2 + 6603^2 .

It is not an unprimeable number, because it can be changed into a prime (64953253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129657 + ... + 130156.

Almost surely, 2^64953250 is an apocalyptic number.

64953250 is a deficient number, since it is larger than the sum of its proper divisors (56639702).

64953250 is a wasteful number, since it uses less digits than its factorization.

64953250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259830 (or 259820 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 64953250 is about 8059.3579148714. The cubic root of 64953250 is about 401.9761584171.

The spelling of 64953250 in words is "sixty-four million, nine hundred fifty-three thousand, two hundred fifty".